التفاصيل البيبلوغرافية
| العنوان: |
The ICRF-3: Proposed Roadmap to the Next Generation International Celestial Reference Frame |
| المؤلفون: |
Jacobs, Christopher S., Arias, F., Boehm, J., Bolotin, S., Bourda, G., Charlot, P., de Witt, A., Fey, A., Gaume, R., Gordon, D., Heinkelmann, R., Kurdubov, S., Lambert, S., Ma, C., Malkin, Z., Nothnagel, A., Seitz, M., Skurikhina, E., Souchay, J., Titov, O. |
| المساهمون: |
Supélec Sciences des Systèmes (E3S), Ecole Supérieure d'Electricité - SUPELEC (FRANCE), M2A 2014, Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire d'Astrophysique de Bordeaux Pessac (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS), Laboratoire de Chimie Appliquée de l'État Solide (LCAES), Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Flinders Medical Centre, Paris-Jourdan Sciences Economiques (PSE), École normale supérieure - Paris (ENS-PSL), Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Institut National de la Recherche Agronomique (INRA)-École des hautes études en sciences sociales (EHESS)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS), Paris School of Economics (PSE), Université Paris 1 Panthéon-Sorbonne (UP1)-École normale supérieure - Paris (ENS-PSL), Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École des hautes études en sciences sociales (EHESS)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire de synthèse organique (DCSO), École polytechnique (X)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS), Pulkovo Observatory, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris |
| المصدر: |
Proceedings of Reference Frames for Astrometry and Geodesy 2014, 34 pp. ; https://hal.science/hal-01110513Test ; Proceedings of Reference Frames for Astrometry and Geodesy 2014, 34 pp., Sep 2013, Paris, France. pp.1 |
| بيانات النشر: |
HAL CCSD |
| سنة النشر: |
2013 |
| المجموعة: |
Archive de l'Observatoire de Paris (HAL) |
| مصطلحات موضوعية: |
Celestial Reference Frame, ICRF, ICRF-3, astrometry, VLBI, S/X-band, K-band, X/Ka-band, Active Galactic Nuclei, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM] |
| جغرافية الموضوع: |
Paris, France |
| الوصف: |
International audience ; ICRF-3 seeks to improve upon the highly successful ICRF-2. Our goals are to improve the precision, spatial and frequency coverage relative to the ICRF-2 by 2018. This date is driven by the desire to create radio frames that are ready for comparison with the Gaia optical frame.Several specific actions are underway. A collaboration has started to improve at S/X-band precision of the VLBA Calibrator Survey's ~2200 sources which are typically 5 times less precise than the rest of the ICRF-2. S/X-band southern precision improvements are underway with observations using southern antennas such as the AuScope and HartRAO, S. Africa.We also seek to improve radio frequency coverage with X/Ka and K-band work. An X/Ka frame of 654 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 is being given to combination techniques both of VLBI frames and of multiple data types. Consistency of the CRF with the TRF and EOP is another area of concern. Comparison of celestial frame solutions from various groups is underway in order to identify and correct systematic errors.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. |
| نوع الوثيقة: |
conference object |
| اللغة: |
English |
| العلاقة: |
hal-01110513; https://hal.science/hal-01110513Test; BIBCODE: 2014rfag.confE.1J |
| الإتاحة: |
https://hal.science/hal-01110513Test |
| رقم الانضمام: |
edsbas.129BDB2C |
| قاعدة البيانات: |
BASE |
