Contributions from Allegro to the EU ARC Newsletter

Contributions from Allegro team are highlighted in the new edition of the European ARC Newsletter.

You can find a summary on the critical work done by a team of Allegro members and JAO staff in the Cone Searches for High-Frequency and Long-Baselines projects, as well as a contribution related to the WVR Scaling Module.

The December 2017 European ARC Newsletter edition is available at this link.

Me@Allegro at the Leiden Science Run

Your local ARC node members will run in the Leiden Science Run 2017.

The race aims to gather donations for the Foundation for Refugee Students (UAF). The foundation provides advice for refugee students on their studies and integrating into the European education and jobs system(s). Further information regarding the foundation can be found at the official UAF website.

Our team is called ‘MeAllegro’ with the motto ‘coherently challenged’.
Please donate to support us using any of the following forms: donation1 or donation2.

By supporting our team you are also encouraging us to achieve better coherence over the ALMA long baselines data!

Further information and relevant links:
[1] Science Run 2017
[2] UAF website
[3] Donation forms: donation1 or donation2.
[4] Find us in Facebook: Faculty of Science – MeAllegro Team

Allegro hosted the EU ARC All-hands meeting

During the last week of September the staff working in all the European ARC nodes had their yearly meeting in Den Dolder (NL) hosted by the Allegro node.

This yearly meeting brings together all the expertise in the network, in an unique occasion that allows us to share our experiences, strengthen our links and discuss pass, present and future developments.

We all are looking forward our next meeting organized by our colleagues at the Czech ARC node.

Picture Credit: A. Borkar

Netherlands ALMA Community Day – March 2, 2017

Allegro, the European ALMA Regional Center node in the Netherlands, is organizing a science day on Thursday March 2, 2017, at Leiden Observatory. For those interested, ALMA data reduction training with CASA will be offered on Friday March 3.

Find more details below:

  • Description

  • Program
  • Participants
  • Directions


     

    DESCRIPTION

    This event will feature presentations on exciting recent results from ALMA by astronomers from the Allegro user community, the latest news from ALMA, and a plenary discussion on expectations and wishes for user support and any other ALMA-related topics. We will conclude the day with the Leiden Observatory General Astrophysics Colloquium that for the occasion of this workshop will have a special ALMA theme, and will be delivered by Dr. Mario Tafalla (OAN Madrid) on ‘ALMA observations of protostellar jets. Trying to understand the mechanism of outflow acceleration’.

     

     

    PROGRAM

    THU 02/03 (Morning session) Room HL 414
    10:30-11:20

    Welcome & Update on ALMA Status

    Allegro and M.A. Zwaan (ESO ARC)

    11:20-11:40

    Kiloparsec-scale dust disks in high-redshift luminous submillimeter galaxies

    J.A. Hodge

    11:40-12:00

    Investigating the feeding of a baby radio galaxy

    F.M. Maccagni

    12:00-12:20

    H2O and outflows in lensed high-z galaxies

    P. van der Werf

    12:20-12:40

    Transitional disks with ALMA

    E.F. van Dishoeck

     

    THU 02/03 (Afternoon Session) Room HL 414
    13:40-14:00

    ALMA observations of the fast molecular outflow in the Seyfert galaxy IC 5063

    T.A. Oosterloo

    14:00-14:20

    The excitation mechanism for the molecular outflow in the nearby radio-loud Seyfert galaxy IC 5063

    J.B.R Oonk

    14:20-14:40

    The Sun with ALMA

    R.J. Rutten

    14:40-15:00

    Ingredients for planet formation: gas masses and g/d ratios of protoplanetary disks in Lupus

    A. Miotello

    15:00-15:20

    Deuteration in the disk surrounding HD163296

    V. Salinas

    15:20-15:30

    COFFEE BREAK
    15:30-15:40

    Brief update from ESAC/ASAC advisory bodies

    H.J. van Langevelde

    15:40-16:00

    Open Discussion Time
    16:00-17:00

    Colloquium De Sitter Zaal

    ALMA observations of protostellar jets. Trying to understand the mechanism of outflow acceleration

    M. Tafalla

    Program for the ALMA Data Reduction Training day can be found here.

     

    PARTICIPANTS

    Name
    E.G. Bogelund
    L.A. Boogaard
    R.A. Burns
    M.T. Carney
    E.F. van Dishoeck
    C.J. Garcia Vergara
    A. Hacar
    J.A. Hodge
    U. Kavak
    H. van der Laan
    H.J. van Langevelde
    F.M. Maccagni
    C.F. Manara
    A. Miotello
    R. Morganti
    G.A. Muro Arena
    J.B.R. Oonk
    T.A. Oosterloo
    R.J. Rutten
    V. Salinas
    M. Tafalla
    S. van Terwisga
    L. Trapman
    L. Tychoniec
    P. Van der Werf
    M. Van ‘t Hoff
    M.H.D. van der Wiel
    P. Zhou
    M.A. Zwaan (ESO ARC)
    Allegro

     

     

    DIRECTIONS

    -Directions to Leiden Observatory

    Note that this is not the old Observatory in the center of Leiden.

    There are regular buses from the Leiden Centraal station, buses 43 (direction Den Haag) or bus 57 (direction Nieuw Vennep). These take around 7 minutes. Please see the link below for more specific details if you will be coming by bus.

    Instructions on how to get to Leiden Observatory, including transportation from Schiphol Airport, can be found here:
    http://www.lorentzcenter.nl/howto.php
    And a site map can be found here:
    http://www.lorentzcenter.nl/map_LC_hotels_stat_web.php

    lorentzcenter

    Note these specify the route to the Lorentz Center, which is in the forward leaning building in the photo. Leiden Observatory and Allegro offices are located on the 4th and 5th floor of that same building. The event will be held in the joining taller building – The Huygens building.

    -Directions inside the building:

    The event will be held on the 4th floor of the Huygens Building (HL), room HL 414. The Colloquium will be held in De Sitter Zaal in the Oort Building. Lunch will be provided in the canteen of the Gorlaeus Building.

    • Room HL-414 (Huygens Building):
      room_HL414

       

    • Allegro offices (Oort Building):
      allegro_offices

ALMA Data Reduction with CASA Training Day – March 3, 2017

For those interested, ALMA data reduction training with CASA will be offered on Friday March 3 by Allegro, the European ALMA Regional Center node in the Netherlands, at Leiden Observatory.

Find more details below:

  • Program
  • Participants
  • Directions
  • Presentations

     

    PROGRAM

    THU 02/03 (Morning session) Room HL 111
    09:30-10:00

    Setup computers & The script “scriptForPI.py”

    10:00-11:00

    Calibration

    11:00-11:30

    COFFEE BREAK
    11:30-12:00

    Imaging

     

    THU 02/03 (Afternoon Session) Room HL 111
    13:30-14:00

    Self-Calibration

    14:00-18:00

    Working in groups (including how to use analysis tools and improving your results with self-calibration)

    Program for the Netherlands ALMA Community Day can be found here.

     

    PARTICIPANTS

    Name
    R.A. Burns
    A. Hacar
    U. Kavak
    F.M. Maccagni
    C.F. Manara
    A. Miotello
    G.A. Muro Arena
    J.B.R. Oonk
    S. van Terwisga
    L. Trapman
    L. Tychoniec
    M. Van ‘t Hoff
    P. Zhou
    Allegro

     

     

    DIRECTIONS

    -Directions to Leiden Observatory

    Note that this is not the old Observatory in the center of Leiden.

    There are regular buses from the Leiden Centraal station, buses 43 (direction Den Haag) or bus 57 (direction Nieuw Vennep). These take around 7 minutes. Please see the link below for more specific details if you will be coming by bus.

    Instructions on how to get to Leiden Observatory, including transportation from Schiphol Airport, can be found here:
    http://www.lorentzcenter.nl/howto.php
    And a site map can be found here:
    http://www.lorentzcenter.nl/map_LC_hotels_stat_web.php

    lorentzcenter

    Note these specify the route to the Lorentz Center, which is in the forward leaning building in the photo. Leiden Observatory and Allegro offices are located on the 4th and 5th floor of that same building. The event will be held in the joining taller building – The Huygens building.

    -Directions inside the building:

    The event will be held on the 1st floor of the Huygens Building (HL), room HL 111.

     

    PRESENTATIONS

March 2-3, 2017: Netherlands ALMA Community Day & ALMA Data Reduction Training Day — Announcement

Allegro, the European ALMA Regional Center node in the Netherlands, is organizing a science day on Thursday March 2, 2017, at Leiden Observatory. This event will feature presentations on exciting recent results from ALMA by astronomers from the Allegro user community, the latest news from ALMA, and a plenary discussion on expectations and wishes for user support and any other ALMA-related topics. We will conclude the day with the Leiden Observatory General Astrophysics Colloquium that for the occasion of this workshop will have a special ALMA theme, and will be delivered by Dr. Mario Tafalla (OAN Madrid) on ‘ALMA observations of protostellar jets. Trying to understand the mechanism of outflow acceleration’.

You can register for the Netherlands Allegro ALMA Community Day 2017 following this link.

If you are interested in given a contributed talk (~20 min) on recent results from ALMA or any related topic, please indicate this on the registration page.

For those interested, ALMA data reduction training with CASA will be offered on Friday March 3 at Allegro. You can indicate your interest on the event registration page linked above.

Protected: ALMA & Allegro phase metrics workshop – Online presentations and presentation review

This content is password protected. To view it please enter your password below:

Postdoctoral Support Position at the ALMA ARC node at Leiden Observatory

Allegro, the Netherlands node of the European ALMA Regional Centre (ARC) at Leiden Observatory, invites applications for a postdoctoral support position. As part of the European ARC network, Allegro supports ALMA users and ALMA operations and development.

The position offers the opportunity for research at one of the major centres of astronomy in the Netherlands as well as an in-depth involvement in the development and operations of ALMA. Leiden astronomers carry out observational and theoretical research in the fields of cosmology, formation and evolution of galaxies, galactic structure, molecular astrophysics, star- and planet formation, as well as computational and laboratory astrophysics and instrumentation. In particular, we are interested in candidates that use ALMA or ALMA data as a prominent part of their research. A minimum of 30% of time will be available for personal research. Besides self-defined research, the appointee is expected to spend time on the technical and user support of ALMA and we are looking for an enthusiastic and motivated applicant to work within the Allegro team on a variety of topics. Allegro’s expertise areas include high-frequency submm observations, research into improved imaging and calibration techniques for ALMA data, especially related to atmospheric effects and phase metrics, mmVLBI, and advanced science tools such as radiative transfer codes and a spectral line database. The appointment will be for two years initially, renewable up to a maximum of four years based on need, funding, and performance. The position comes with a competitive salary and full benefits of an employee in the public sector.

Qualifications and selection criteria: PhD in Astronomy, Physics, or related field, or proven track record of relevant experience. Research experience in fields directly related to submm astronomy. Experience with radio interferometric data is highly desirable. The applicant must have a good working knowledge of Linux. Familiarity with astronomical data reduction, in particular CASA, is a strong desirable. An ability to work as part of an international team is essential. The position may involve extended research trips of several weeks. The Leiden ARC node values diversity in its workforce.

Please submit applications electronically at http://jobs.strw.leidenuniv.nl/2016/tilanusPD. The search will continue until the position is filled; applications arriving before the deadline of June 15, 2016 will be assured of full consideration. You will be asked to fill in a web form, to provide contact information for two referees, and to upload a cover letter, curriculum vitae, a brief statement of research experience and interests and a publication list.

Postdoc salaries range from € 3044 to € 3996 gross per month (pay scale 10, in accordance with the Collective Labour Agreement for Dutch Universities). Leiden University offers an attractive benefits package that includes additional vacation (8%) and end-of-year (8.3%) bonuses, sick leave, maternity and parental leaves, and retirement benefits. Candidates from outside the Netherlands may be eligible for a substantial tax break. Leiden Observatory is the oldest university astronomy department in the world and the largest astronomy department in the Netherlands. Leiden is a charming university town with international flair close to Amsterdam.

Email Address for Inquiries: rtilanus@strw.leidenuniv.nl

ALMA Phase Correction Workshop

Allegro, Leiden, May 30 – June 3, 2016

A workshop focused on how to improve the ALMA phase corrections is jointly organized by the ALMA observatory and Allegro. It will be held at Leiden Observatory from May 30 – Jun 3. Participation is by invitation only. Find more details below:


 

DESCRIPTION

ALMA imaging observations – particularly on long baselines – are often limited more by phase fluctuations than atmospheric transmission or PWV. To enable more long-baseline or high-frequency observations, or improve existing data, we need to look at ways to improve the phase correction.

The aims of this workshop are:

  1. Review the methods that could improve ALMA phase correction and image fidelity. Including (but not limited to) baseline accuracy, WVR corrections, pressure and other environmental fluctuations, cycle times, online/offline WVR correction.
  2. Summarise the results from the related test observations during the 2014 and 2015 long-baseline campaigns, and identify and quantify the methods that do produce noticeable improvements.
  3. Make recommendations for changes in ALMA software, hardware and/or observing methods which will improve phase correction

 

PROGRAM
A pdf detailed version of the program can be found in this link: Phasemeeting_final_agenda
 

Mon 30/05 (Afternoon Session) Room HL 204
13:30-13:45

Welcome & Logistics

Remo

13:45-14:15

Outline of the meeting & Topic Organisation

Ed – Bill

Single Source Statistics
14:30-15:00

ALMA Long Baseline Campaign 2014/2015 – Basic Phase Characteristics & Pseudo cycling

Satoki

15:00-15:20

COFFEE BREAK
15:20-15:50

ALMA Long Baseline Campaign 2014 – Weather Correlations & Use of the Two-Point-Deviation

Luke

16:00-16:30

Examination of the GonoGo criterion – Results from 2014/2015 –

Bill

16:40-18:00

Open Discussion Time

 

Tue 31/05 (Morning Session) Room HL 204
WVR Discussions
09:00-09:45

Introduction to Radiometer-based Phase Correction – Principles, Instrumentation and Application

Richard

10:00-10:20

The O2 Oxygen sounder – Applicability in better atmosphere models

George

10:20-10:30

COFFEE BREAK
10:30-10:50

WVR application timescale, 1 sec vs. 6 sec

Ed

11:00-11:30

Optimising WVR solutions (scaling) – improved phases and images

Luke

11:40-12:00

Cloud Continuum removal – Effectiveness, applicability

Bill

12:10-12:30

TelCal WVR online, monitoring and phase RMS calculations

Dominique

12:40-13:00

Correlation of changes with measured pressure over the array

Satoki
Tue 31/05 (Afternoon Session) Room HL 204
14:00-15:00

Open Discussion Time
15:00-15:20

COFFEE BREAK
Antenna Position Measurements
15:20-15:40

‘Inside’ Tc Antpos – phase correction, analysis, SPW combination and plots

Dominique

15:50-16:20

Long baseline antenna measurements

Todd

16:20-16:40

COFFEE BREAK
16:40-17:10

Are antenna position changes related to tropospheric changes?

Ed

17:20-17:40

Suggested observing strategies for the next long baselines to reduce the effect of ‘changes’

Ed

17:40-18:30

Open Discussion Time

 

Wed 01/06 (Morning Session) Room HL 106
Phase referencing statistics
09:00-09:20

Is the GonoGo criteria good for estimating the phase referencing scheme

Bill

09:30-10:00

Phase referencing statistics and correlations – Fast switching experiments 2014/2015. Details of source separation, cycle time and image quality. When does and doesn’t fast switching work

Yoshi

10:10-10:20

What about the calibrators? Searches and contributions

Anita

10:30-10:40

Multi frequency AGN survey with the KVN

Taehyun

10:40-10:50

COFFEE BREAK
10:50-11:10

Pushing bands 9 and 10 beyond 5 km configurations – ‘normal’
observing techniques

Ed

11:20-11:40

Testing phase referencing in marginal conditions – does very-fast
referencing really help

Yoshi – Ed

11:50-12:10

Diurnal properties of the long baseline phase statistics

Bill – Ed

12:00-13:00

Open Discussion Time
Wed 01/06 (Afternoon Session) Room HL 106
Astrometry
14:00-14:20

Astrometry results from the long baseline campaign – multi source observations for accurate astrometry

Antonio

14:30-15:00

Is this single test sufficient, further examination, astrometry runs, multi calibrators in science data

Ed – Antonio – Open discussion

15:00-15:20

Long term astrometry: Parallax studies, proper motions, planet/stellar wobbles – tests, feasibility, offered observation modes for LB?

Ed

15:20-15:30

COFFEE BREAK
15:30-15:50

Check sources for Astrometry

Ed

16:00-17:00

Open Discussion Time
Group Meal Evening — Belgisch Bier Cafe Olivier – 7 pm (Directions)

 

Thu 02/06 (Morning Session) Room HL 106
ALMA Long Baseline experience
10:00-10:20

Lessons Learned at LB (1)

Crystal (LINK)

10:30-10:50

Lessons Learned at LB (2)

Anita

11:00-10:20

The use of Check sources during the observations – What the QA2 current script does with check sources and plans for improvements

Todd (LINK)

11:20-11:40

COFFEE BREAK
11:40-12:40

Open Discussion Time
Thu 02/06 (Afternoon Session) Room HL 106
Higher Frequencies
14:00-14:20

ALMA Band-to-Band (B2B) tests attempts

Ed

14:30-14:50

Band 3 to Band 7 fast switching results

Yoshi

15:00-15:20

Dual frequency simulation using sub-arrays – Band 3 to 6 tests

Luke

15:20-15:40

COFFEE BREAK
15:40-16:00

ALMA High Frequency calibrator cone searches

Yanett – Carmen

16:10-17:30

Open Discussion Time

 

Fri 03/06 (Morning Session) Room HL 106
Summary and Future
09:30-10:00

Conference Summary

Remo

10:15-…

Open Session

 

PRESENTATIONS

Please, find the workshop presentations and summary in the password protected area (password notified by email, no username required):
Link to online presentations and presentations review.

 

LOGISTICS

The workshop is jointly organized by the ALMA observatory and Allegro, the Netherlands ARC node. It will be held at Leiden Observatory from May 30 – Jun 3. Participation is by invitation only.

-Accomodation
Hotel occupancy in Leiden is expected to be high for this period and you are urged to book early. A block reservation has been arranged at the IBIS hotel, opposite Leiden Centraal railway station: Link to Ibis hotel

This booking is held until 18/04/2016. After this date rooms that have not been reserved will be canceled. Workshop attendees receive a discounted price. Reservations need to be made via email to H8087-RE@accor.com mentioning the booking code STER280516:
o Single room incl. breakfast: €81.50 (€ 79 room plus € 2.50 tax per person/per day)
o Double room incl. breakfast: €97.00 (€92 room plus €2.50 tax per person/per day)

-Transportation
For those of you staying at the IBIS hotel situated adjacent from Leiden Centraal Station there will be taxis arranged to take you to the university and back each day. There will be enough space for ~15 people in total.

Leave Ibis Leave University
Monday

13:00

18:00
Tuesday

08:30

18:30
Wednesday

08:30

17:30
Thursday

09:30

17:30
Friday

09:00

12:30

As an alternative there are regular buses from the station, buses 43 (direction Den Haag) or bus 57 (direction Nieuw Vennep). These take around 7 minutes. Please see the link below for more specific details if you will be coming by bus.

Instructions on how to get to Leiden Observatory, including transportation from Schiphol Airport, can be found here:
http://www.lorentzcenter.nl/howto.php
And a site map can be found here:
http://www.lorentzcenter.nl/map_LC_hotels_stat_web.php

Note these specify the route to the Lorentz Center, which is in the forward leaning building in the photo. Leiden Observatory and Allegro are located on the 4th and 5th floor of that same building. Note that this is not the old Observatory in the center of Leiden. The workshop will be held on the First and Second floors of the joining building – The Huygens Building (HL) – in either rooms 204 or 106 (see directions below).

-Directions inside the building:

Room 106:
room_106

Room 204:
room_204

Allegro offices:
allegro_offices

-Remote participation:

WEBEX link for remote participation (only Mac and Windows OS):

https://meetings.webex.com/collabs/#/meetings/detail?uuid=M6YLWHU19C3ENKOPN2PJFMIJCE-EIHZ&rnd=692476.57822

This is be open every day of the meeting, you simply click and follow the instructions below (see also Webex_Getting_Started ).

Instructions:
– Use a Windows or Mac OsX computer (NOT Linux) and point the browser to the provided link.
Firefox works, but there are sporadic reports of Safari not working. To be safe, also quit
Skype before you start since under some conditions it can latch on the mic/speaker.

– After signing in (your name and an email address) click the large button on the left “Connect to Audio” –> “Call Using this Computer –>
(select correct audio devices –> be sure to hit “OK” (audio won’t work in meeting until you hit the “OK”). (See page 1 & 3 of the attached guide).

– If possible, use earphones with a microphone.

– Note there are tabs (upper left) for different pages, so check those first if you can not find your way.

– On the right there are buttons to open “Participants”, “Chat” etc. panels. If you make your window large enough it
is possible to have both panels open at the same time. Chat will work even when audio/video is not working
(assuming the person on the other end keeps an eye on it).

– The gear box above the video panel allows you to set the video source (it default for a mac to the camera
on the notebook display which may be closed and you’ll have to then set it to the camera on the external display.)

– The “audio” button below the participants list opens the audio selection/test panel.

-Conference dinner:
The evening meal will be on Wed 7 pm at the Belgisch Bier Cafe Olivier – Hooigracht 23, 2312 KM Leiden.
Find directions from Leiden Centraal station to the restaurant here:
MapToOliviers

And the menu here: Menu_Olivier_Eng

 

PARTICIPANTS

Name
Anita Richards
Richard Hills
Satoki Matsushita
Yoshiharu Asaki
Bill Dent
Ed Fomalont
Ray Blundell
Juan R. Pardo
George Bendo
Scott Paine
Dominique Broguiere
Taehyun Jung
Neil Phillips
Michael Bremer
Bojan Nikolic
Antonio Hales
Allegro

 

Requested remote participation (see instructions here):

Name
Crystal Bogan
Todd Hunter
Liz Humphreys
Alan Roy

 

Expert advice from Allegro for ALMA Cycle 4 proposals

The Call for Proposals for ALMA Cycle 4 will come out on March 22, 2016. Deadline for proposal submission is April 21, 2016. Full details on the call and the expected capabilities can be found here.

New capabilities expected in Cycle 4 include
– ACA stand-alone observations
– Large Programs (>50 hrs)
– mm-wave VLBI
– Solar observations

A full list of expected modes is available via the link above. Some modes are non-standard and restricted to 20% of the observing time.

We would like to remind you that Allegro offers expert advice on proposal feasibility, preparation, and optimization, via e-mail, phone, skype or face-to-face visit. We are available to answer any question you have about your planned ALMA proposal and assist you with developing the technical case of your proposal.

Unlike earlier years, we are not planning any special events where we present the capabilities of the upcoming ALMA Cycle: this information is just as easily read on the ALMA Science Portal. Instead, we invite you to contact us wit specific questions about your proposal or about the ALMA capabilities. We are more than happy to help!

You can contact Allegro at alma@strw.leidenuniv.nl. Face-to-face support can also be requested via the ALMA Helpdesk. You are of course also very welcome to contact any of the Allegro staff directly.