Publications
2023
Gaia Collaboration
Gaia Data Release 3: Mapping the asymmetric disc of the Milky Way Journal Article
In: Astronomy and Astrophysics, 2023.
Abstract | Links | BibTeX | Tags: astrostatistics
@article{collaboration2022gaia,
title = {Gaia Data Release 3: Mapping the asymmetric disc of the Milky Way},
author = {Gaia Collaboration},
url = {https://www.aanda.org/component/article?access=doi&doi=10.1051/0004-6361/202243797},
doi = {10.1051/0004-6361/202243797},
year = {2023},
date = {2023-01-01},
journal = {Astronomy and Astrophysics},
abstract = {With the most recent Gaia data release the number of sources with complete 6D phase space information (position and velocity) has increased to well over 33 million stars, while stellar astrophysical parameters are provided for more than 470 million sources, in addition to the identification of over 11 million variable stars. Using the astrophysical parameters and variability classifications provided in Gaia DR3, we select various stellar populations to explore and identify non-axisymmetric features in the disc of the Milky Way in both configuration and velocity space. Using more about 580 thousand sources identified as hot OB stars, together with 988 known open clusters younger than 100 million years, we map the spiral structure associated with star formation 4-5 kpc from the Sun. We select over 2800 Classical Cepheids younger than 200 million years, which show spiral features extending as far as 10 kpc from the Sun in the outer disc. We also identify more than 8.7 million sources on the red giant branch (RGB), of which 5.7 million have line-of-sight velocities, allowing the velocity field of the Milky Way to be mapped as far as 8 kpc from the Sun, including the inner disc. The spiral structure revealed by the young populations is consistent with recent results using Gaia EDR3 astrometry and source lists based on near infrared photometry, showing the Local (Orion) arm to be at least 8 kpc long, and an outer arm consistent with what is seen in HI surveys, which seems to be a continuation of the Perseus arm into the third quadrant. Meanwhile, the subset of RGB stars with velocities clearly reveals the large scale kinematic signature of the bar in the inner disc, as well as evidence of streaming motions in the outer disc that might be associated with spiral arms or bar resonances. (abridged)},
keywords = {astrostatistics},
pubstate = {accepted},
tppubtype = {article}
}
2022
Gaia collaboration
Gaia Early Data Release 3-The celestial reference frame (Gaia-CRF3) Journal Article
In: Astronomy & Astrophysics, vol. 667, no. A148, pp. A148, 2022.
Abstract | Links | BibTeX | Tags: astrostatistics
@article{klioner2022gaia,
title = {Gaia Early Data Release 3-The celestial reference frame (Gaia-CRF3)},
author = {Gaia collaboration},
url = {https://www.aanda.org/articles/aa/abs/2022/11/aa43483-22/aa43483-22.html},
doi = {10.1051/0004-6361/202243483},
year = {2022},
date = {2022-01-01},
journal = {Astronomy & Astrophysics},
volume = {667},
number = {A148},
pages = {A148},
abstract = {Gaia-CRF3 is the celestial reference frame for positions and proper motions in the third release of data from the Gaia mission, Gaia DR3 (and for the early third release, Gaia EDR3, which contains identical astrometric results). The reference frame is defined by the positions and proper motions at epoch 2016.0 for a specific set of extragalactic sources in the (E)DR3 catalogue. Aims. We describe the construction of Gaia-CRF3 and its properties in terms of the distributions in magnitude, colour, and astrometric quality. Methods. Compact extragalactic sources in Gaia DR3 were identified by positional cross-matching with 17 external catalogues of quasi-stellar objects (QSO) and active galactic nuclei (AGN), followed by astrometric filtering designed to remove stellar contaminants. Selecting a clean sample was favoured over including a higher number of extragalactic sources. For the final sample, the random and systematic errors in the proper motions are analysed, as well as the radio-optical offsets in position for sources in the third realisation of the International Celestial Reference Frame (ICRF3). Results. Gaia-CRF3 comprises about 1.6 million QSO-like sources, of which 1.2 million have five-parameter astrometric solutions in Gaia DR3 and 0.4 million have six-parameter solutions. The sources span the magnitude range G = 13–21 with a peak density at 20.6 mag, at which the typical positional uncertainty is about 1 mas. The proper motions show systematic errors on the level of 12 µas yr–1 on angular scales greater than 15 deg. For the 3142 optical counterparts of ICRF3 sources in the S/X frequency bands, the median offset from the radio positions is about 0.5 mas, but it exceeds 4 mas in either coordinate for 127 sources. We outline the future of Gaia-CRF in the next Gaia data releases. Appendices give further details on the external catalogues used, how to extract information about the Gaia-CRF3 sources, potential (Galactic) confusion sources, and the estimation of the spin and orientation of an astrometric solution.},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
Gaia Collaboration
Gaia Data Release 3. Summary of the content and survey properties Journal Article
In: Astronomy & Astrophysics, 2022.
Abstract | Links | BibTeX | Tags: astrostatistics
@article{vallenari2022gaia,
title = {Gaia Data Release 3. Summary of the content and survey properties},
author = {Gaia Collaboration},
url = {https://www.aanda.org/component/article?access=doi&doi=10.1051/0004-6361/202243940},
doi = {10.1051/0004-6361/202243940},
year = {2022},
date = {2022-01-01},
journal = {Astronomy & Astrophysics},
abstract = {We present the third data release of the European Space Agency’s Gaia mission, Gaia DR3. This release includes a large variety of new data products, notably a much expanded radial velocity survey and a very extensive astrophysical characterisation of Gaia sources. Aims. We outline the content and the properties of Gaia DR3, providing an overview of the main improvements in the data processing in compar- ison with previous data releases (where applicable) and a brief discussion of the limitations of the data in this release. Methods. The Gaia DR3 catalogue is the outcome of the processing of raw data collected with the Gaia instruments during the first 34 months of the mission by the Gaia Data Processing and Analysis Consortium. Results. The Gaia DR3 catalogue contains the same source list, celestial positions, proper motions, parallaxes, and broad band photometry in the G, GBP, and GRP pass-bands already present in the Early Third Data Release, Gaia EDR3. Gaia DR3 introduces an impressive wealth of new data products. More than 33 million objects in the ranges GRVS < 14 and 3100 < Teff < 14500, have new determinations of their mean radial velocities based on data collected by Gaia. We provide GRVS magnitudes for most sources with radial velocities, and a line broadening parameter is listed for a subset of these. Mean Gaia spectra are made available to the community. The Gaia DR3 catalogue includes about 1 million mean spectra from the radial velocity spectrometer, and about 220 million low-resolution blue and red prism photometer BP/RP mean spectra. The results of the analysis of epoch photometry are provided for some 10 million sources across 24 variability types. Gaia DR3 includes astrophysical parameters and source class probabilities for about 470 million and 1500 million sources, respectively, including stars, galaxies, and quasars. Orbital elements and trend parameters are provided for some 800 000 astrometric, spectroscopic and eclipsing binaries. More than 150 000 Solar System objects, including new discoveries, with preliminary orbital solutions and individual epoch observations are part of this release. Reflectance spectra derived from the epoch BP/RP spectral data are published for about 60 000 asteroids. Finally, an additional data set is provided, namely the Gaia Andromeda Photometric Survey, consisting of the photometric time series for all sources located in a 5.5 degree radius field centred on the Andromeda galaxy. Conclusions. This data release represents a major advance with respect to Gaia DR2 and Gaia EDR3 because of the unprecedented quantity, quality, and variety of source astrophysical data. To date this is the largest collection of all-sky spectrophotometry, radial velocities, variables, and astrophysical parameters derived from both low- and high-resolution spectra and includes a spectrophotometric and dynamical survey of SSOs of the highest accuracy. The non-single star content surpasses the existing data by orders of magnitude. The quasar host and galaxy light profile collection is the first such survey that is all sky and space based. The astrophysical information provided in Gaia DR3 will unleash the full potential of Gaia’s exquisite astrometric, photometric, and radial velocity surveys.},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
2021
Gaia Collaboration and M. García-Torres
Gaia Early Data Release 3-Acceleration of the Solar System from Gaia astrometry Journal Article
In: Astronomy & Astrophysics, vol. 649, pp. A9, 2021.
Links | BibTeX | Tags: astrostatistics
@article{klioner2021gaia,
title = {Gaia Early Data Release 3-Acceleration of the Solar System from Gaia astrometry},
author = {Gaia Collaboration and M. García-Torres},
url = {https://www.aanda.org/articles/aa/full_html/2021/05/aa39734-20/aa39734-20.html},
doi = {10.1051/0004-6361/202039734},
year = {2021},
date = {2021-01-01},
journal = {Astronomy & Astrophysics},
volume = {649},
pages = {A9},
publisher = {EDP sciences},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
Gaia Collaboration and M. García-Torres
Gaia Early Data Release 3-The Galactic anticentre Journal Article
In: Astronomy & Astrophysics, vol. 649, pp. A8, 2021.
Links | BibTeX | Tags: astrostatistics
@article{antoja2021gaia,
title = {Gaia Early Data Release 3-The Galactic anticentre},
author = {Gaia Collaboration and M. García-Torres},
url = {https://www.aanda.org/articles/aa/abs/2021/05/aa39714-20/aa39714-20.html},
doi = {10.1051/0004-6361/202039714},
year = {2021},
date = {2021-01-01},
journal = {Astronomy & Astrophysics},
volume = {649},
pages = {A8},
publisher = {EDP sciences},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
A. GA. Brown and A. Vallenari and T. Prusti and JHJ. De Bruijne and C. Babusiaux and M. Biermann and OL. Creevey and DW. Evans and L. Eyer and A. Hutton and M. García-Torres and others
Gaia Early Data Release 3-Summary of the contents and survey properties Journal Article
In: Astronomy & Astrophysics, vol. 649, pp. A1, 2021.
Links | BibTeX | Tags: astrostatistics
@article{brown2021gaia,
title = {Gaia Early Data Release 3-Summary of the contents and survey properties},
author = {A. GA. Brown and A. Vallenari and T. Prusti and JHJ. De Bruijne and C. Babusiaux and M. Biermann and OL. Creevey and DW. Evans and L. Eyer and A. Hutton and M. García-Torres and others},
url = {https://www.aanda.org/articles/aa/abs/2021/05/aa39657-20/aa39657-20.html},
doi = {10.1051/0004-6361/202039657},
year = {2021},
date = {2021-01-01},
journal = {Astronomy & Astrophysics},
volume = {649},
pages = {A1},
publisher = {EDP sciences},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
Gaia Collaboration and M. García-Torres
Gaia Early Data Release 3-Structure and properties of the Magellanic Clouds Journal Article
In: Astronomy & Astrophysics, vol. 649, pp. A7, 2021.
Links | BibTeX | Tags: astrostatistics
@article{luri2021gaia,
title = {Gaia Early Data Release 3-Structure and properties of the Magellanic Clouds},
author = {Gaia Collaboration and M. García-Torres},
url = {https://www.aanda.org/articles/aa/abs/2021/05/aa39588-20/aa39588-20.html},
doi = {10.1051/0004-6361/202039588},
year = {2021},
date = {2021-01-01},
journal = {Astronomy & Astrophysics},
volume = {649},
pages = {A7},
publisher = {EDP sciences},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
Gaia Collaboration and M. García-Torres
Gaia Early Data Release 3-The Gaia Catalogue of Nearby Stars Journal Article
In: Astronomy & Astrophysics, vol. 649, pp. A6, 2021.
Links | BibTeX | Tags: astrostatistics
@article{smart2021gaia,
title = {Gaia Early Data Release 3-The Gaia Catalogue of Nearby Stars},
author = {Gaia Collaboration and M. García-Torres},
url = {https://www.aanda.org/articles/aa/abs/2021/05/aa39498-20/aa39498-20.html},
doi = {https://doi.org/10.1051/0004-6361/202039498},
year = {2021},
date = {2021-01-01},
journal = {Astronomy & Astrophysics},
volume = {649},
pages = {A6},
publisher = {EDP sciences},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
2018
M. García-Torres and Gaia collaboration
Gaia Data Release 2. Observational Hertzsprung-Russell diagrams Journal Article
In: Astronomy & Astrophysics, vol. 616, no. A10, 2018.
Links | BibTeX | Tags: astrostatistics
@article{AA:Gaia-2018a,
title = {Gaia Data Release 2. Observational Hertzsprung-Russell diagrams},
author = {M. García-Torres and Gaia collaboration},
url = {https://www.aanda.org/articles/aa/full_html/2018/08/aa32843-18/aa32843-18.html},
doi = {10.1051/0004-6361/201832843},
year = {2018},
date = {2018-01-01},
journal = {Astronomy & Astrophysics},
volume = {616},
number = {A10},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
M. García-Torres and Gaia collaboration
Gaia Data Release 2. Summary of the contents and survey properties Journal Article
In: Astronomy & Astrophysics, vol. 616, no. A1, 2018.
Links | BibTeX | Tags: astrostatistics
@article{AA:Gaia-2018b,
title = {Gaia Data Release 2. Summary of the contents and survey properties},
author = {M. García-Torres and Gaia collaboration},
url = {https://www.aanda.org/articles/aa/full_html/2018/08/aa33051-18/aa33051-18.html},
doi = {10.1051/0004-6361/201833051},
year = {2018},
date = {2018-01-01},
journal = {Astronomy & Astrophysics},
volume = {616},
number = {A1},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
M. García-Torres and Gaia collaboration
Gaia Data Release 2. Observations of Solar System Objects Journal Article
In: Astronomy & Astrophysics, vol. 616, no. A13, 2018.
Links | BibTeX | Tags: astrostatistics
@article{AA:Gaia-2018c,
title = {Gaia Data Release 2. Observations of Solar System Objects},
author = {M. García-Torres and Gaia collaboration},
url = {https://www.aanda.org/articles/aa/abs/2018/08/aa32900-18/aa32900-18.html},
doi = {10.1051/0004-6361/201832900},
year = {2018},
date = {2018-01-01},
journal = {Astronomy & Astrophysics},
volume = {616},
number = {A13},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
M. García-Torres and Gaia collaboration
Gaia Data Release 2. Mapping the milky way disc kinematics Journal Article
In: Astronomy & Astrophysics, vol. 616, no. A11, 2018.
Links | BibTeX | Tags: astrostatistics
@article{AA:Gaia-2018d,
title = {Gaia Data Release 2. Mapping the milky way disc kinematics},
author = {M. García-Torres and Gaia collaboration},
url = {https://www.aanda.org/articles/aa/abs/2018/08/aa32865-18/aa32865-18.html},
doi = {10.1051/0004-6361/201832865},
year = {2018},
date = {2018-01-01},
journal = {Astronomy & Astrophysics},
volume = {616},
number = {A11},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
M. García-Torres and Gaia collaboration
Gaia Data Release 2. The celestial reference frame (Gaia-CRF2) Journal Article
In: Astronomy & Astrophysics, vol. 616, no. A14, 2018.
Links | BibTeX | Tags: astrostatistics
@article{AA:Gaia-2018e,
title = {Gaia Data Release 2. The celestial reference frame (Gaia-CRF2)},
author = {M. García-Torres and Gaia collaboration},
url = {https://www.aanda.org/articles/aa/full_html/2018/08/aa32916-18/aa32916-18.html},
doi = {10.1051/0004-6361/201832916},
year = {2018},
date = {2018-01-01},
journal = {Astronomy & Astrophysics},
volume = {616},
number = {A14},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
2017
M. García-Torres and Gaia collaboration
Gaia Data Release 1. Open cluster astrometry: performance, limitations, and future prospects Journal Article
In: Astronomy & Astrophysics, vol. 601, no. A19, 2017.
Links | BibTeX | Tags: astrostatistics
@article{AA:Gaia-2017a,
title = {Gaia Data Release 1. Open cluster astrometry: performance, limitations, and future prospects},
author = {M. García-Torres and Gaia collaboration},
url = {https://www.aanda.org/articles/aa/abs/2017/05/aa30552-17/aa30552-17.html},
doi = {10.1051/0004-6361/201730552},
year = {2017},
date = {2017-01-01},
journal = {Astronomy & Astrophysics},
volume = {601},
number = {A19},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
M. García-Torres and Gaia collaboration
Gaia Data Release 1. Testing the parallaxes with local Cepheids and RR Lyrae stars Journal Article
In: Astronomy & Astrophysics, vol. 605, no. A79, 2017.
Links | BibTeX | Tags: astrostatistics
@article{AA:Gaia-2017b,
title = {Gaia Data Release 1. Testing the parallaxes with local Cepheids and RR Lyrae stars},
author = {M. García-Torres and Gaia collaboration},
url = {https://www.aanda.org/articles/aa/abs/2017/09/aa29925-16/aa29925-16.html},
doi = {10.1051/0004-6361/201629925},
year = {2017},
date = {2017-01-01},
journal = {Astronomy & Astrophysics},
volume = {605},
number = {A79},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
2016
M. García-Torres and Gaia collaboration
The Gaia Mission Journal Article
In: Astronomy & Astrophysics, vol. 595, no. A1, 2016.
Links | BibTeX | Tags: astrostatistics
@article{AA:Gaia-2016a,
title = {The Gaia Mission},
author = {M. García-Torres and Gaia collaboration},
url = {https://www.aanda.org/articles/aa/abs/2016/11/aa29272-16/aa29272-16.html},
doi = {10.1051/0004-6361/201629272},
year = {2016},
date = {2016-01-01},
journal = {Astronomy & Astrophysics},
volume = {595},
number = {A1},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
M. García-Torres and Gaia collaboration
Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties Journal Article
In: Astronomy & Astrophysics, vol. 595, no. A2, 2016.
Links | BibTeX | Tags: astrostatistics
@article{AA:Gaia-2016b,
title = {Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties},
author = {M. García-Torres and Gaia collaboration},
url = {https://www.aanda.org/articles/aa/abs/2016/11/aa29512-16/aa29512-16.html},
doi = {10.1051/0004-6361/201629512},
year = {2016},
date = {2016-01-01},
journal = {Astronomy & Astrophysics},
volume = {595},
number = {A2},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
2013
M. García-Torres and Gaia Collaboration
The Gaia astrophysical parameters inference system (Apsis). Pre-launch description Journal Article
In: Astronomy & Astrophysics, vol. 559, no. A74, 2013.
Links | BibTeX | Tags: astrostatistics
@article{AA:Cor-2013,
title = {The Gaia astrophysical parameters inference system (Apsis). Pre-launch description},
author = {M. García-Torres and Gaia Collaboration},
url = {https://www.aanda.org/articles/aa/abs/2013/11/aa22344-13/aa22344-13.html},
doi = {10.1051/0004-6361/201322344},
year = {2013},
date = {2013-01-01},
journal = {Astronomy & Astrophysics},
volume = {559},
number = {A74},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
2011
R. Oreiro and C. Rodríguez-López and E. Solano and A. Ulla and R. Ostensen and M. García-Torres
A search for new hot subdwarf stars by means of Virtual Observatory tools Journal Article
In: Astronomy & Astrophysics, vol. 530, no. A2, 2011.
Links | BibTeX | Tags: astrostatistics
@article{AA:Ore-2011,
title = {A search for new hot subdwarf stars by means of Virtual Observatory tools},
author = {R. Oreiro and C. Rodríguez-López and E. Solano and A. Ulla and R. Ostensen and M. García-Torres},
url = {https://www.aanda.org/articles/aa/abs/2011/06/aa16324-10/aa16324-10.html},
doi = {10.1051/0004-6361/201016324},
year = {2011},
date = {2011-01-01},
journal = {Astronomy & Astrophysics},
volume = {530},
number = {A2},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}
2009
M. García-Torres and Gaia Collaboration
The LAEX and NASA portals for CoRot public data Journal Article
In: Astronomy & Astrophysics, vol. 506, no. 1, pp. 455-463, 2009.
Links | BibTeX | Tags: astrostatistics
@article{AA:Sol-2009,
title = {The LAEX and NASA portals for CoRot public data},
author = {M. García-Torres and Gaia Collaboration},
url = {https://www.aanda.org/articles/aa/abs/2009/40/aa12386-09/aa12386-09.html},
doi = {10.1051/0004-6361/200912386},
year = {2009},
date = {2009-01-01},
journal = {Astronomy & Astrophysics},
volume = {506},
number = {1},
pages = {455-463},
keywords = {astrostatistics},
pubstate = {published},
tppubtype = {article}
}