Gaia Data Release 2
- A. Brown, A. Vallenari, T. Zwitter
- PhysicsAstronomy & Astrophysics
- 25 April 2018
Context. The second data release of the Gaia mission (DR2) includes an advance catalogue of variable stars. The classifications of these stars are based on sparse photometry from the first 22 months…
Gaia Data Release 2
- F. Spoto, P. Tanga, T. Zwitter
- PhysicsAstronomy & Astrophysics
- 25 April 2018
The dramatic improvement brought by Gaia DR2 astrometry of SSOs is demonstrated by comparisons to the archive data and by preliminary tests on the detection of subtle non-gravitational effects.
Gaia Early Data Release 3-The astrometric solution
- L. Lindegren, S. Klioner, A. Vecchiato
- Physics
- 2021
Context. Gaia Early Data Release 3 (Gaia EDR3) contains results for 1.812 billion sources in the magnitude range G = 3–21 based on observations collected by the European Space Agency Gaia satellite…
Gaia Data Release 2
- Gaia Collaboration, C. Babusiaux, T. Zwitter
- PhysicsAstronomy & Astrophysics
- 25 April 2018
Context. Gaia Data Release 2 provides high-precision astrometry and three-band photometry for about 1.3 billion sources over the full sky. The precision, accuracy, and homogeneity of both astrometry…
Gaia Early Data Release 3
- Gaia Collaboration, A. Brown, T. Zwitter
- PhysicsAstronomy & Astrophysics
- 20 November 2020
Context. Gaia Early Data Release 3 (Gaia EDR3) provides accurate astrometry for about 1.6 million compact (QSO-like) extragalactic sources, 1.2 million of which have the best-quality five-parameter…
Localized sources of water vapour on the dwarf planet (1) Ceres
- M. Küppers, L. O'Rourke, R. Moreno
- Geology, PhysicsNature
- 23 January 2014
The detection of water vapour around Ceres is reported, with at least 1026 molecules being produced per second, originating from localized sources that seem to be linked to mid-latitude regions on the surface.
The Hot Core around the Low-Mass Protostar IRAS 16293–2422: Scoundrels Rule!
- S. Cazaux, A. Tielens, D. Teyssier
- Physics, Chemistry
- 10 August 2003
While warm dense gas is prevalent around low-mass protostars, the presence of complex saturated molecules—the chemical inventory characteristic of hot cores—has remained elusive in such environments.…
In-orbit performance of Herschel-HIFI
- P. Roelfsema, F. Helmich, U. Yıldız
- Physics
- 2012
Aims. In this paper the calibration and in-orbit performance of the Heterodyne Instrument for the Far-Infrared (HIFI) is described. Methods. The calibration of HIFI is based on a combination of…
CO line emission from circumstellar envelopes
- D. Teyssier, R. Hernández, V. Bujarrabal, H. Yoshida, T. Phillips
- Physics
- 1 April 2006
Aims. We present the results of a multi-transition CO observational program conducted on a sample of AGB and post-AGB stars envelopes. We have collected maps and single pointing observations of these…
Gaia Data Release 3. Summary of the content and survey properties
- Gaia Collaboration A. Vallenari, A. Brown, T. Zwitter
- PhysicsAstronomy & Astrophysics
- 13 June 2022
Context. We present the second Gaia data release, Gaia DR2, consisting of astrometry, photometry, radial velocities, and information on astrophysical parameters and variability, for sources brighter…
...
...