J/A+A/565/A11 Gaia photometry for white dwarfs (Carrasco+, 2014)
Gaia photometry for white dwarfs.
Carrasco J.M., Catalan S., Jordi C., Tremblay P.-E., Napiwotzki R.,
Luri X., Robin A.C., Kowalski P.M.
<Astron. Astrophys. 565, A11 (2014)>
=2014A&A...565A..11C 2014A&A...565A..11C
ADC_Keywords: Stars, white dwarf ; Photometry, UBVRI ; Photometry, ugriz ;
Milky Way ; Models, atmosphere ; Photometry, CCD
Keywords: stars: evolution - white dwarfs - instrumentation: photometers -
space vehicles: instruments - Galaxy: general -
techniques: photometric -
Description:
The Gaia space mission, through its 5-6 years survey of the whole sky
up to magnitude V=20-25, will drastically increase the sample of
known white dwarfs allowing to address new science questions. In this
paper we provide a characterisation of Gaia photometry for the case of
white dwarfs to better prepare for the analysis of the scientific
output of the mission including relationships among colours involving
Gaia magnitudes (white light G, blue GBP, red GRP and GRVS passbands)
and colours from other commonly used photometric systems
(Johnson-Cousins, SDSS and 2MASS). We also present numbers of white
dwarfs predicted by the Gaia Universe Model Snapshot and compare them
with an alternative simulation calibrated with the local white dwarfs
sample. In these online tables we provide the values used to fit the
relationships in the paper, especially useful for those cases where
the deviation from the established relationships is large. The most
recent Gaia transmission curves and three different compositions for
white dwarfs were considered here (pure hydrogen, pure helium and
mixed composition with H/He=0.1).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 168 360 Gaia, Johnson, 2MASS and SDSS absolute magnitudes
derived for WD SEDs extracted from Tremblay et al.
(2011, Cat. J/ApJ/730/128) for the case of
pure-H composition WDs
table4.dat 168 240 Gaia, Johnson, 2MASS and SDSS absolute magnitudes
derived for WD SEDs extracted from Bergeron et al.
(2011ApJ...737...28B 2011ApJ...737...28B) for the case of
pure-He composition WDs
table5.dat 168 85 Gaia, Johnson, 2MASS and SDSS absolute magnitudes
derived for WD SEDs extracted from Kilic et al.
(2010, Cat. J/ApJS/190/77) for the case of
mixed (He/H=0.1) composition WDs
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See also:
J/ApJS/190/77 : Detailed analysis of cool WDs in the SDSS (Kilic+, 2010)
J/ApJ/730/128 : Spectroscopy of DA WD from the SDSS-DR4 (Tremblay+, 2011)
J/A+A/523/A48 : Gaia photometry (Jordi+, 2010)
J/A+A/552/A64 : Gaia-RVS standards (Soubiran+, 2013)
J/MNRAS/426/1767 : Gaia Preliminary results (Pancino+, 2012)
Byte-by-byte Description of file: table3.dat table4.dat table5.dat
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Bytes Format Units Label Explanations
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1- 7 F7.0 K Teff [1500/140000] Effective Temperature
9- 11 F3.1 [cm/s2] logg [7/9.5] Surface gravity
14- 18 F5.3 Msun Mass [0.14/1.463] Mass of the white dwarf
20- 25 F6.3 mag Mbol [-2.2/23] Bolometric magnitude
27- 32 F6.3 mag BCV Bolometric correction in V Johnson-Cousins
passband
34- 39 F6.3 mag UMAG Johnson-Cousins U absolute magnitude
41- 46 F6.3 mag BMAG Johnson-Cousins B absolute magnitude
48- 53 F6.3 mag VMAG Johnson-Cousins V absolute magnitude
55- 60 F6.3 mag RMAG Johnson-Cousins Rc absolute magnitude
62- 67 F6.3 mag IMAG Johnson-Cousins Ic absolute magnitude
69- 74 F6.3 mag JMAG 2MASS J absolute magnitude
76- 81 F6.3 mag HMAG 2MASS H absolute magnitude
83- 88 F6.3 mag KMAG 2MASS Ks absolute magnitude
90- 95 F6.3 mag uMAG SDSS u absolute magnitude
97-102 F6.3 mag gMAG SDSS g absolute magnitude
104-109 F6.3 mag rMAG SDSS r absolute magnitude
111-116 F6.3 mag iMAG SDSS i absolute magnitude
118-123 F6.3 mag zMAG SDSS z absolute magnitude
125-130 F6.3 mag yMAG SDSS y absolute magnitude
132-137 F6.3 mag GMAG Gaia G passband (white light in astrometric
field)
139-144 F6.3 mag GbpMAG Gaia Gbp passband (blue spectrophotometer
total response)
146-151 F6.3 mag GrpMAG Gaia Grp passband (red spectrophotometer
total response)
153-158 F6.3 mag GrvsMAG Gaia Gvrs passband (Radial velocity
spectroscopy total response)
160-168 E9.4 yr Age Age of the white dwarf
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Acknowledgements:
Josep Manel Carrasco, carrasco(at)am.ub.es
References:
Tremblay et al., 2011ApJ...730..128T 2011ApJ...730..128T, Cat. J/ApJ/730/128
Bergeron et al., 2011ApJ...737...28B 2011ApJ...737...28B
Kilic et al., 2010ApJS..190...77K 2010ApJS..190...77K, Cat. J/ApJS/190/77
(End) J.M. Carrasco [Univ. Barcelona, Spain], P. Vannier [CDS] 19-Mar-2014