J/A+A/674/A21 KYSO - The Konkoly Optical YSO catalogue (Marton+, 2023)
Gaia Data Release 3.
Validating the classification of variable young stellar object candidates.
Marton G., Abraham P., Rimoldini L., Audard M., Kun M., Nagy Z., Kospal A.,
Szabados L., Holl B., Gavras P., Mowlavi N., Nienartowicz K.,
Jevardat de Fombelle G., Lecoeur-Taibi I., Karbevska L., Garcia-Lario P.,
Eyer L.
<Astron. Astrophys. 674, A21 (2023)>
=2023A&A...674A..21M 2023A&A...674A..21M (SIMBAD/NED BibCode)
ADC_Keywords: Stars, pre-main sequence ; YSOs ; Photometry ; Optical
Keywords: catalogs - stars: early-type - Galaxy: stellar content -
stars: formation - stars: pre-main sequence - stars: statistics
Abstract:
The Gaia third Data Release (DR3) presents the first catalogue of
full-sky variable Young Stellar Object (YSO) candidates observed by
the Gaia space telescope during the initial 34 months of science
operations. Numerous types of variable stars were classified using
photometric data collected by Gaia. One of the new classes presented
in the Gaia DR3 is the class of YSOs showing brightness variability.
We analysed 79375 sources classified as YSO candidates to validate
their young nature and investigate the completeness and purity of the
sample.
We cross-matched the Gaia DR3 YSO sample with numerous catalogues from
the literature, including YSO catalogues based on optical and infrared
data, as well as catalogues of extragalactic sources and Galactic
variable stars. YSO catalogues were used to quantify the completeness
of the Gaia DR3 YSO sample, while others were inspected to calculate
the contamination. Among the 79375 potential Young Stellar Object
candidates published in the Gaia DR3 variable star catalogue, the
majority of these objects are distributed along the line of sight of
well-known Star Forming Regions and the Galactic mid-plane. We found
that the upper limit of contamination is 26.7%, depending on the
external catalogue used for the estimation, but is ∼10% in general,
while the completeness is at the percent level, taking into account
that the Gaia DR3 YSO sample is based on sources that showed
significant variability during the data collection period. The number
of sources in our sample that were never catalogued before as YSO
candidates is in the order of ∼40000 objects.
Description:
We compiled a large catalogue of optically detected, bona fide young
stellar objects. The main source of our compilation was the Handbook
of Star Forming Regions (Volumes I & II, Reipurth, 2008hsf1.book.....R 2008hsf1.book.....R
and 2008hsf2.book.....R 2008hsf2.book.....R) which consists of 62 chapters, with each
chapter describing a region of the sky (mostly one constellation or a
part of it) and not a well-defined Star Forming Region. All of the
included regions are located in the ∼2kpc vicinity of the Sun. Most
chapters contain a list of YSOs located in the specific SFRs, but
sometimes only references to the catalogues are given. In the latter
case, we took the list of the YSOs from the original (discovery)
papers. We also performed an extensive literature search to include
YSO catalogues published after the Handbook of Star Forming Regions.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
kyso.dat 444 11671 *KYSO catalog
--------------------------------------------------------------------------------
Note on kyso.dat: More details of the catalogue are described in Appandix A of
the corresponding publication. We thank Michael A. Kuhn for his continuous
feedback on the catalogue content.
--------------------------------------------------------------------------------
See also:
I/352 : Distances to 1.47 billion stars in Gaia EDR3 (Bailer-Jones+, 2021)
I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)
Byte-by-byte Description of file: kyso.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 11 F10.6 deg RAdeg Right ascension as in Ref (J2000.0) (1)
14- 23 F10.6 deg DEdeg Declination as in Ref (J2000.0) (1)
26- 35 F10.6 deg GLON Galactic longitude
39- 48 F10.6 deg GLAT Galactic latitude
51- 79 A29 --- SFR Name of Star Forming Region as in Ref (1)
82-101 A20 --- Name Object name as in Ref (1)
107-125 A19 --- Ref Reference to object data
142-187 A46 --- Method YSO identification method as in Ref (1)
189-197 A9 --- YSOtype YSO type
201-209 A9 --- vartype Variability type
211-226 F16.12 deg RAGdeg ?=* Gaia DR3 Right ascension (J2000.0)
229-245 F17.13 deg DEGdeg ?=* Gaia DR3 Declination (J2000.0)
249-267 I19 --- GaiaDR3 ? Gaia DR3 source id
270-276 F7.4 mas plx ? Gaia DR3 parallax
280-285 F6.4 mas e_plx ? Gaia DR3 parallax error
289-295 F7.4 --- ruwe ? Gaia DR3 renormalised unit weight error
302-311 F10.7 mag Gmag ? Gaia DR3 mean G band magnitude
320-329 F10.7 mag BP-RP ? Gaia DR3 mean BP-RP colour
335-344 F10.6 arcsec angDist ? Angular distance between Gaia DR3 and
reference position
350-363 F14.8 pc rgeo ? Median of the geometric distance
posterior (2)
366-381 F16.10 pc b_rgeo ? 16th percentile of the geometric distance
posterior(2)
382-395 F14.8 pc B_rgeo ? 84th percentile of the geometric distance
posterior(2)
398-411 F14.8 pc rpgeo ? Median of the photogeometric distance
posterior (2)
414-427 F14.8 pc b_rpgeo ? 16th percentile of the photogeometric
distance posterior (2)
431-444 F14.8 pc B_rpgeo ? 84th percentile of the photogeometric
distance posterior (2)
--------------------------------------------------------------------------------
Note (1): Crossmatch between reference and Gaia DR3 positions was made in TOPCAT
(Taylor, M. B., 2005, ASPC, 347, 29T).
Note (2): Distance values are from Bailer-Jones et al., 2021AJ....161..147B 2021AJ....161..147B,
Cat. I/352.
--------------------------------------------------------------------------------
Acknowledgements:
Gabor Marton, marton.gabor(at)csfk.org
Maria Kun, kun.maria(at)csfk.org
References:
Reipurth, B., Handbook of Star Forming Regions, Volume I: The Northern Sky,
2008hsf1.book.....R 2008hsf1.book.....R
Reipurth, B., Handbook of Star Forming Regions, Volume II: The Southern Sky,
2008hsf2.book.....R 2008hsf2.book.....R
(End) Gabor Marton [CSFK, Hungary], Patricia Vannier [CDS] 23-Dec-2022