The ICRF-3: Proposed Roadmap to the Next Generation International Celestial Reference Frame
Christopher S. Jacobs
,
Elisa Felicitas Arias
(1)
,
D. Boboltz
(2)
,
J. Boehm
(3)
,
S. Bolotin
(4)
,
G. Bourda
(5)
,
Patrick Charlot
(5)
,
A. de Witt
(6)
,
A. L. Fey
(7)
,
R. A. Gaume
(7)
,
Dorothy A. Gordon
(4)
,
Robert Heinkelmann
(8)
,
Sébastien Lambert
(9)
,
C. Ma
(4)
,
Z. Malkin
(10)
,
A. Nothnagel
(11)
,
M. Seitz
(12)
,
E. Skurikhina
(13)
,
Jean Souchay
(9)
,
O. A. Titov
(14)
1
BIPM -
Bureau International des Poids et Mesures
2 NSF, Washington
3 University of Vienna
4 Goddard Space Flight Center, NASA, Astrophysics Science Division
5 OASU - Observatoire aquitain des sciences de l'univers
6 HartRAO, S.Africa
7 USNO - United States Naval Observatory
8 GFZ, Potsdam
9 Observatoire de Paris
10 Helsingin yliopisto = Helsingfors universitet = University of Helsinki
11 University of Bonn
12 DGFI - Deutsches Geodätisches Forschungsinstitut
13 IAA - Instituto de Astrofísica de Andalucía
14 Geosciences Australia
2 NSF, Washington
3 University of Vienna
4 Goddard Space Flight Center, NASA, Astrophysics Science Division
5 OASU - Observatoire aquitain des sciences de l'univers
6 HartRAO, S.Africa
7 USNO - United States Naval Observatory
8 GFZ, Potsdam
9 Observatoire de Paris
10 Helsingin yliopisto = Helsingfors universitet = University of Helsinki
11 University of Bonn
12 DGFI - Deutsches Geodätisches Forschungsinstitut
13 IAA - Instituto de Astrofísica de Andalucía
14 Geosciences Australia
Résumé
We propose a 3rd generation radio-based International Celestial Reference Frame (ICRF- 3) to improve upon the highly successful ICRF-2. Our goals are to improve the precision, spatial and frequency coverages relative to the ICRF-2 by 2018. This date is driven by the desire to create radio frames early enough to test the Gaia optical frame during its construction. Several specific actions are underway. A collaboration has been started to improve S/X-band precision of the 2000 VLBA Calibrator Survey sources which are typically 5 times less precise than the rest of the ICRF-2. S/X-band southern precision improvements are planned from observations with southern antennas such as the AuScope and HartRAO, S. Africa. We seek to improve radio frequency coverage with X/Ka and K- band work. An X/Ka frame of 631 sources now has full sky coverage from the addition of a 2nd southern station in Argentina which should strengthen the southern hemisphere in general. A K-band collaboration has formed with similar coverage and southern precision goals. On the analysis front, special attention will be given to combination techniques both of VLBI catalogs and of multiple data types (e.g. VLBI GPS). Finally, work is underway to identify and pinpoint sources bright enough in both radio and optical to allow for a robust frame tie between VLBI and Gaia optical frames.
Domaines
Astrophysique [astro-ph]Format du dépôt | Notice |
---|---|
Type de dépôt | Communication dans un congrès |
Titre |
en
The ICRF-3: Proposed Roadmap to the Next Generation International Celestial Reference Frame
|
Résumé |
en
We propose a 3rd generation radio-based International Celestial Reference Frame (ICRF- 3) to improve upon the highly successful ICRF-2. Our goals are to improve the precision, spatial and frequency coverages relative to the ICRF-2 by 2018. This date is driven by the desire to create radio frames early enough to test the Gaia optical frame during its construction. Several specific actions are underway. A collaboration has been started to improve S/X-band precision of the 2000 VLBA Calibrator Survey sources which are typically 5 times less precise than the rest of the ICRF-2. S/X-band southern precision improvements are planned from observations with southern antennas such as the AuScope and HartRAO, S. Africa. We seek to improve radio frequency coverage with X/Ka and K- band work. An X/Ka frame of 631 sources now has full sky coverage from the addition of a 2nd southern station in Argentina which should strengthen the southern hemisphere in general. A K-band collaboration has formed with similar coverage and southern precision goals. On the analysis front, special attention will be given to combination techniques both of VLBI catalogs and of multiple data types (e.g. VLBI GPS). Finally, work is underway to identify and pinpoint sources bright enough in both radio and optical to allow for a robust frame tie between VLBI and Gaia optical frames.
|
Auteur(s) |
Christopher S. Jacobs
, Elisa Felicitas Arias
1
, D. Boboltz
2
, J. Boehm
3
, S. Bolotin
4
, G. Bourda
5
, Patrick Charlot
5
, A. de Witt
6
, A. L. Fey
7
, R. A. Gaume
7
, Dorothy A. Gordon
4
, Robert Heinkelmann
8
, Sébastien Lambert
9
, C. Ma
4
, Z. Malkin
10
, A. Nothnagel
11
, M. Seitz
12
, E. Skurikhina
13
, Jean Souchay
9
, O. A. Titov
14
1
BIPM -
Bureau International des Poids et Mesures
( 403 )
- France
2
NSF, Washington
( 1140062 )
- NSF, Washington
- États-Unis
3
University of Vienna
( 1108424 )
- Türkenschanzstrasse 17, 1180, Vienna
- Autriche
4
Goddard Space Flight Center, NASA, Astrophysics Science Division
( 1106130 )
- Code 663, Greenbelt,
MD 20770
- États-Unis
5
OASU -
Observatoire aquitain des sciences de l'univers
( 1880 )
- 0ASU - Site de Floirac 2 rue de l'Observatoire - BP 89 33270 FLOIRAC
- France
6
HartRAO, S.Africa
( 1140065 )
- HartRAO, S.Africa
- Afrique du Sud
7
USNO -
United States Naval Observatory
( 1097735 )
- 3450 Massachusetts Avenue NW, Washington, DC 20392-5420
- États-Unis
8
GFZ, Potsdam
( 1140069 )
- GFZ, Potsdam
- Allemagne
9
Observatoire de Paris
( 300055 )
- 61 Av de l'Observatoire 75014 PARIS
- France
10
Helsingin yliopisto = Helsingfors universitet = University of Helsinki
( 50895 )
- Yliopistonkatu 4, 00100 Helsinki
- Finlande
11
University of Bonn
( 1140072 )
- IGG, Bonn, Germany
- Allemagne
12
DGFI -
Deutsches Geodätisches Forschungsinstitut
( 1112898 )
- Munich
- Allemagne
13
IAA -
Instituto de Astrofísica de Andalucía
( 89930 )
- Granada E-18008
- Espagne
14
Geosciences Australia
( 1140075 )
- Geosciences Australia
- Australie
|
Langue du document |
Anglais
|
Vulgarisation |
Non
|
Comité de lecture |
Non
|
Audience |
Internationale
|
Actes |
Oui
|
Date de publication |
2013
|
Titre du congrès |
Journées Systèmes de Référence Spatio-temporels 2013
|
Date début congrès |
2013-09-16
|
Date fin congrès |
2013-09-18
|
Ville |
Paris
|
Pays |
France
|
Domaine(s) |
|
Référence interne |
|
ADS Id | 2013jsrs.confE...1J |
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