Nouvelles du CNRC Herzberg / NRC Herzberg News

From/de Dennis Crabtree (NRC-Herzberg)
Avec l’apport de/With contributions from Chris Willott

(Cassiopeia – Hivers/winter 2016)

The English version follows

Rapport Cassiopée de CNRC Herzberg

Les rubriques qui suivent reviendront dans chaque numéro du bulletin et ont pour but de tenir les astronomes canadiens au courant des activités de CNRC Herzberg.

Les commentaires des astronomes sur la manière dont CNRC Herzberg accomplit sa mission, c’est-à-dire «assurer le fonctionnement et la gestion des observatoires astronomiques mis sur pied ou exploités par l’État canadien» (Loi sur le CNRC), sont les bienvenus.

Comité canadien d’attribution de temps (CanTAC)

Les membres du CanTAC se sont réunis en novembre afin de discuter des propositions soumises pour le télescope Canada-France-Hawaii (TCHF) et l’observatoire Gemini pour le trimestre 2017A, et les classer. Quelques membres du CanTAC, y compris les présidents, se sont réunis en personne à Victoria, et les autres membres se sont joints à eux par téléconférence. Le super-président du CanTAC pour la réunion était Scott Chapman (Dalhousie), alors que le Groupe galactique était présidé par Stanimir Metchev (Université Western) et le Groupe intergalactique, par Eric Steinbring (CNRC Herzberg). Dennis Crabtree continue d’assumer le rôle de secrétaire technique.

Voici la liste complète des membres du CanTAC présents à la réunion de novembre:

Galactique Extragalactique
Laurent Drissen (Laval) Arif Babul (Victoria)
Christopher Johns-Krull (Rice) Peter Capak (Caltech)
Stanimir Metchev (Western) Scott Chapman (Dalhousie)
Leslie Rogers (Caltech) Julie Hlavacek-Larrondo (Montreal)
Samar Safi-Harb (Manitoba) Eric Steinbring (NRC)
Ingrid Stairs (UBC) Ludo van Waerbake (UBC)
Peter Stetson (Herzberg)

Pour le semestre 20170A, CanTAC a reçu 33 propositions pour le TCHF (18 du Groupe galactique et 15 du Groupe extragalactique) ainsi que 39 propositions pour l’observatoire Gemini (11 du Groupe galactique et 19 du Groupe extragalactique). Un total de 532 heures d’utilisation ont été demandées pour le TCHF et 371 heures pour Gemini. Les taux d’adhésion étaient était de 2,81 pour le TCHF, de 2,36 pour Gemini Nord et de 2,43 pour Gemini Sud.

La demande pour l’utilisation des deux télescopes était beaucoup plus élevée qu’au dernier semestre.

Centre canadien de données astronomiques (CCDA)

Atelier de modélisation de données du Common Archive Observation Model (CAOM)

Le CCDA a organisé à Victoria un atelier de 2 jours portant sur la modélisation de données, les 6 et 7 décembre. Il y a quelques années, le CCDA a déplacé toutes ses collections de données vers le modèle Common Archive Observation Model (CAOM), qui permet l’utilisation d’une seule interface lorsqu’on veut interroger toutes ces collections. Le CAOM simplifie également l’accès aux données par l’entremise des services du consortium international de l’observation virtuelle, l’International Virtual Observatory Alliance (IVOA). Le Mikulski Archive for Space Telescopes (MAST), au Space Telescope Science Institute (STScI), a adopté le modèle du CAOM. C’est également le modèle utilisé pour les données de base au James Webb Space Telescope (JWST) et au Réseau d’un kilomètre carré (SKA).

D’autres projets ont démontré un intérêt marqué pour le CAOM. Cela a incité le CCAD et le STScI à organiser et coparrainer ce petit atelier de 2 jours qui rassemblait seulement les parties intéressées (soit 18 utilisateurs courants et potentiels), afin de discuter du modèle de données et de la façon d’assurer son soutien en tant que projet communautaire à source ouverte. Un marathon de programmation a eu lieu, pendant toute une journée, après l’atelier. Les employés du CCAD et du STScI ont collaboré avec les nouveaux participants afin d’explorer les exemples d’ensembles de données, et ce, depuis la saisie de métadonnées dans la base de données CAOM jusqu’à la recherche et la récupération de données au moyen d’une interface d’interrogation ou de protocoles du IVOA.

Nouvelles du JWST

Seize jours! C’est ce qui nous sépare de la première vague d’appel de propositions pour du temps d’observation au JWST. Le 6 janvier 2017, un appel aux avis d’intention pour le dépôt de propositions dans le cadre du programme Early Release Science sera lancé. Le programme Early Release Science (ERS) est un programme de demande pour du temps discrétionnaire du directeur qui vise à utiliser plusieurs des modèles d’observation du JWST assez tôt dans le premier cycle, en diffusant les données à tous les utilisateurs potentiels en vue d’éclairer leurs propositions du deuxième cycle. Les propositions complètes pour le programme ERS doivent être remises en août 2017. Elles seront choisies selon le mérite scientifique ainsi que selon des facteurs supplémentaires liés à l’objectif d’informer la communauté scientifique des capacités du JWST, les techniques de traitement de données et l’analyse scientifique. L’appel de propositions pour le cycle 1 s’ensuivra en novembre 2017

JWST Cycle 1 Proposal Schedule

JWST Cycle 1 Proposal Schedule

Miroir primaire de JWST

Miroir primaire du JWST

Les utilisateurs potentiels ont accès à plusieurs outils de soutien sur le site Web du Space Telescope Science Institute. On y trouve notamment un outil de propositions pour les astronomes (Astronomer’s Proposal Tool), un calculateur de temps d’exposition (Exposure Time Calculator) et de nouveaux renseignements sur le JWST. De plus, une série de conférences communautaires diffusées sur le Web offre de l’information sur le processus à suivre pour la demande de temps d’utilisation du JWST ainsi que sur la façon d’optimiser la vaste gamme de modes d’observations lors de l’exécution des expériences. En octobre 2016, l’Université de Montréal a organisé une conférence très réussie, intitulée « Exploring the Universe with JWST – II ». Des scientifiques venant des quatre coins du monde se sont réunis pour discuter de la façon dont le JWST pourrait contribuer à aborder les questions scientifiques importantes.

Maintenant que le module d’instrument a été intégré au télescope, le JWST va soumettre le télescope à une batterie de tests afin d’assurer qu’il répond aux exigences de performance optiques et thermales attendues. Le télescope sera ensuite intégré à l’engin spatial et à l’écran solaire à cinq couches qui protège le télescope et les instruments de la chaleur. Le lancement du télescope à bord d’une fusée Ariane 5, prévu pour octobre 2018, se poursuit conformément à l’échéancier du JWST.



The NRC Herzberg Cassiopeia Report

These reports will appear in each issue of Cassiopeia with the goal of informing the Canadian astronomical community on the activities at NRC Herzberg.

Feedback is welcome from community members about how NRC Herzberg is doing in fulfilling our mandate to “operate and administer any astronomical observatories established or maintained by the Government of Canada” (NRC Act).

Canadian Time Allocation Committee (CanTAC)

CanTAC met in November to discuss and rank CFHT and Gemini proposals for semester 2017A. A few CanTAC members, including all the Chairs, met in Victoria while the remainder of CanTAC connected by telecon. The CanTAC SuperChair for this meeting was Scott Chapman (Dalhousie), while the Galactic panel chair was Stanimir Metchev (Western) and the Extragalactic panel chair was Eric Steinbring (NRC Herzberg). Dennis Crabtree continues to serve as the technical secretary.

The full list of CanTAC members for the November meeting was:

Galactic Extragalactic
Laurent Drissen (Laval) Arif Babul (Victoria)
Christopher Johns-Krull (Rice) Peter Capak (Caltech)
Stanimir Metchev (Western) Scott Chapman (Dalhousie)
Leslie Rogers (Caltech) Julie Hlavacek-Larrondo (Montreal)
Samar Safi-Harb (Manitoba) Eric Steinbring (NRC)
Ingrid Stairs (UBC) Ludo van Waerbake (UBC)
Peter Stetson (Herzberg)

For Semester 2017A CanTAC received 33 CFHT proposals (18 Galactic and 15 Extragalactic) and 39 Gemini proposals (24 Galactic and 19 Extragalactic). There was a total of 532 hours requested on CFHT and 371 hours on Gemini. The subscription rates were 2.81 for CFHT, 2.36 for Gemini North and 2.43 for Gemini South.

The demand for both telescopes increased significantly from the last semester.

Canadian Astronomy Data Centre (CADC)

Common Archive Observation Model (CAOM) Data Modelling Workshop

The CADC hosted a 2-day data modelling workshop in Victoria Dec 6–7. Several years ago, the CADC moved all its data collections to a Common Archive Observation Model (CAOM) which allows a single interface to query all of these data collections. CAOM also facilitates providing access to these collections via International Virtual Observatory Alliance (IVOA) services. The CAOM data model has been adopted by the Mikulski Archive for Space Telescopes (MAST) at STScI and is the baseline data model for JWST and SKA.

The CAOM has attracted significant attention from other projects. This interest prompted CADC and STScI to organize and co-host this small, invitation-only 2-day workshop to bring interested parties (18 current and potential users) together to discuss the data model and how to support it as an open source community project. The workshop was followed by a 1-day hackathon where CADC and STScI staff worked with new participants to round trip their example datasets from metadata ingestion into the CAOM databases through to querying and retrieval with a browser query interface and/or IVOA protocols.

JWST Update

16 days! That is all between now and the release date of the first opportunity to apply for observing time on the James Webb Space Telescope (JWST). A call for Notices of Intent for Early Release Science proposals will be issued on the 6th January 2017. The Early Release Science (ERS) program is a Director’s Discretionary Time program that aims to exercise many of the JWST observing modes early in the first cycle, putting data into the hands of all prospective users in time to inform their cycle 2 proposals. Full ERS proposals are due in August 2017 and will be selected based on scientific merit plus additional factors relating to the goal of informing the community on JWST capabilities, data processing techniques and scientific analysis. The call for regular Cycle 1 proposals will follow in November 2017.

JWST Cycle 1 Proposal Schedule

JWST Cycle 1 Proposal Schedule

JWST’s primary mirror

JWST’s primary mirror

To support prospective users of the telescope there are many tools being made available at the Space Telescope Science Institute including the Astronomer’s Proposal Tool, Exposure Time Calculator and new JWST Documentation. In addition a series of webcast community lectures provide information on applying for JWST time and how best to use the wide range of observing modes to carry out your science. In October 2016 the Université de Montréal organized a very successful conference, “Exploring the Universe with JWST – II”, bringing together scientists from around the world to discuss how JWST can tackle many important science questions.

Now that the instrument module has been integrated into the telescope, JWST will go through a series of tests to ensure the telescope will meet the expected optical and thermal performance. After that the telescope will be integrated with the spacecraft and five-layer sunshield that keeps the telescope and instruments cool. JWST remains on schedule for launch on an Ariane V rocket in October 2018.

TENURE-TRACK, ASSISTANT PROFESSOR POSITION AT SAINT MARY’S

The Department of Astronomy and Physics at Saint Mary’s University invites applications for a tenure-track Assistant Professor in Astronomy and Astrophysics. The anticipated start date is July 1st, 2017. The Department is particularly interested in applicants in the area of computational astrophysics but candidates from other areas of astronomy and astrophysics are encouraged to apply. The successful candidate will possess a Ph.D. in a related field and the ability to develop and maintain an innovative, externally-funded research program, and supervise graduate students. The successful candidate will be committed to excellence in teaching at the undergraduate and graduate levels, and will be expected to play an active service role at the University.

Saint Mary’s University identifies astronomy, computational sciences, and subatomic physics collectively as one of its five major research themes. The Department of Astronomy and Physics is the centre for astronomy research in Atlantic Canada, and consists of ten full-time faculty members, all with active research efforts in observational astronomy, theoretical and computational astrophysics, and experimental subatomic physics. Additionally, the University hosts the Institute for Computational Astrophysics (ICA), an institute focused on promoting computational astrophysics in the broadest possible terms, including the tackling of complex astrophysical phenomena through numerical simulation and advancing discoveries utilizing “big data” from large multinational observational facilities. Observational astronomers in the Department are eligible for Canadian time on observatories including Gemini, CFHT, ALMA, Astrosat, and JCMT as well as JWST and TMT while ICA members are active users of Compute Canada HPC facilities. Our subatomic physicists are frequent users of TRIUMF, Jefferson Lab, GSI, and other world facilities. The Department offers B.Sc. Major and Honours programs in Astrophysics and in Physics, and faculty members supervise graduate students in M.Sc. and Ph.D. programs in Astronomy and in Applied Science. For a more complete account of Department activities, please see http://www.ap.smu.ca.

Saint Mary’s is located in the historic port city of Halifax, Nova Scotia, a vibrant, urban community of over 350,000 people that is a major educational and economic centre for Atlantic Canada and is home to five universities. The city is conveniently located close to recreational areas and major urban centres in Canada and the northeastern United States. A public university with over 7,000 students, Saint Mary’s offers a variety of undergraduate and graduate degree programs. The University has gone through significant renewal in the past decade and has over 250 full-time faculty involved in innovative teaching, research, and service. For more information about the University and the Faculty of Science, please see http://science.smu.ca/.

Saint Mary’s University hires on the basis of merit and is committed to the principles of employment equity. Saint Mary’s University encourages applications from qualified women, visible minorities, Aboriginal people, and people with disabilities. In keeping with Citizenship and Immigration Canada requirements, all qualified persons are invited to apply; however, preference will be given to Canadian citizens and permanent residents.

The search committee will begin reviewing applications on February 1st, 2017. Applications should include a cover letter specifically addressing the applicant’s interest in working at Saint Mary’s University and detailing the applicant’s scholarly research interests; a CV; a research plan; a teaching dossier (including a teaching philosophy statement, and any evidence of teaching effectiveness); and the names and contact information of three references. Please arrange for the three recommendation letters to be sent directly to the address below.

Applications should be sent via email, as a single PDF file to search@ap.smu.ca
or via mail to:
Dr. Marcin Sawicki, Chairperson
Department of Astronomy and Physics
Saint Mary’s University
923 Robie Street
Halifax, Nova Scotia, Canada, B3H 3C3

Inquiries may be sent to: search@ap.smu.ca

2017 U of T Summer Undergraduate Research Program in Astronomy & Astrophysics

The annual Summer Undergraduate Research Program (SURP) in Astronomy & Astrophysics at the University of Toronto is a unique opportunity for undergraduate students in Astronomy, Physics and Engineering to prepare for a career in scientific research.

Over the 16-week program, students will:

• Experience what a career in research is like by independently conducting a project related to on-going astronomical research at U of T
• Collaborate with U of T astronomers
• Enhance their computing skills
• Improve their research writing and communication skills
• Learn about research being conducted at U of T
• Have an opportunity to participate in U of T public outreach activities

Students will be funded by the program and will work with astronomers from the Dunlap Institute, the Department of Astronomy & Astrophysics (DAA), or the Canadian Institute for Theoretical Astrophysics (CITA), depending on the student’s research interest, choice of supervisor, or choice of research project.

It is a unique opportunity to work within a group comprising three units with complementary expertise in observational research, astronomical instrumentation (Dunlap), and theoretical astrophysics (CITA).

Students will receive a $9000 CAD stipend.

The program runs from 8 May to 25 August, 2017.

The deadline for applications is 30 January 2017.

For full details and to apply, visit:

www.dunlap.utoronto.ca/SURP
www.cita.utoronto.ca/SURP

www.dunlap.utoronto.ca
www.astro.utoronto.ca
www.cita.utoronto.ca