J/ApJ/581/1194 Taurus-Auriga PMS stars ages and Teff (Palla+, 2002)
Star formation in space and time: Taurus-Auriga.
Palla F., Stahler S.W.
<Astrophys. J. 581, 1194 (2002)>
=2002ApJ...581.1194P 2002ApJ...581.1194P
ADC_Keywords: Stars, pre-main sequence ; Effective temperatures ; Stars, ages
Keywords: ISM: clouds - ISM: individual (Taurus-Auriga) -
ISM: kinematics and dynamics -
open clusters and associations: general - stars: formation -
stars: pre-main-sequence
Abstract:
To understand the formation of stellar groups, one must first document
carefully the birth pattern within real clusters and associations. In
this study of Taurus-Auriga, we combine pre-main-sequence ages from our
own evolutionary tracks with stellar positions from observational
surveys. Aided by the extensive millimeter data on the molecular
clouds, we develop a picture of the region's history.
Description:
We base our own investigation on a sample of 153 stars, drawn from a
number of sources in the literature. Most are from the compilation of
Kenyon & Hartmann (1995, Cat. J/ApJS/101/117), who in turn utilized
and supplemented earlier studies in the optical, near-infrared, and
X-ray regimes. The membership list of Kenyon & Hartmann is complete to
V∼5 mag. Within the L1495E cloud, both Strom & Strom
(1994ApJ...424..237S 1994ApJ...424..237S) and Luhman & Rieke (1998ApJ...497..354L 1998ApJ...497..354L)
conducted deeper surveys, which doubled the number of known members in
this area. Briceno et al. (1998AJ....115.2074B 1998AJ....115.2074B) focused on very low
mass objects in both L1495E and other regions, uncovering nine new
stars. Both the 2MASS project (Luhman, 2000ApJ...544.1044L 2000ApJ...544.1044L) and the
large-scale, optical CIDA survey (Briceno et al., 1999AJ....118.1354B 1999AJ....118.1354B)
yielded additional objects. Finally, we have added 13 stars from the
ROSAT study of Wichmann et al. (2000A&A...359..181W 2000A&A...359..181W).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 79 212 Pre-main-sequence ages for the 153 members with
published luminosities and effective temperatures
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See also:
J/A+AS/101/485 : Multisite UBVRI photometry in Tau-Aur cloud (Bouvier+ 1993)
J/ApJS/101/117 : UBVRIJHKLMNQ photometry in Taurus-Auriga (Kenyon+ 1995)
J/A+A/312/439 : New T Tauri stars in Taurus-Auriga (Wichmann+, 1996)
J/A+AS/132/173 : New weak-line T Tauri stars in Taurus-Auriga (Li+ 1998)
J/A+AS/145/187 : uvby-β photometry of WTTS (Chavarria-K+, 2000)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Right ascension (J2000)
4- 5 I2 min RAm Right ascension (J2000)
7- 10 F4.1 s RAs Right ascension (J2000)
12 A1 --- DE- Declination sign (J2000)
13- 14 I2 deg DEd Declination (J2000)
16- 17 I2 arcmin DEm Declination (J2000)
19- 22 F4.1 arcsec DEs Declination (J2000)
25- 31 F7.3 deg GLON Galactic longitude
33- 39 F7.3 deg GLAT Galactic latitude
41- 56 A16 --- Star Star name (1)
58 A1 --- Type [WC] Classical (C) or weak-lined (W)
T Tauri star
61- 65 I5 K Teff ? Effective temperature
68 A1 --- l_Lum Limit flag on Lum
69- 73 F5.2 solLum Lum ? Luminosity
75- 79 F5.1 Myr Age ? Estimated Age
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Note (1): Simbad nomenclature as follows:
V410 XN = [SS94] V410 X-ray N
V410 ANN = [SS94] V410 Anon NN
LR N = [LR98] N
Hubble N = Hubble I N
FV Tau/c = Coku FV Tau c
HN Tau/c = Coku HN Tau c
MHO-N = [BHS98] MHO N
CIDA-NN = [BCG93] NN
L1551-51 = [FK83] LDN 1551 51
L1551 IRS5 = NAME LDN 1551 IRS 5
CNNNN not in Simbad
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History:
Copied at http://www.arcetri.astro.it/~palla/taurus
References:
Palla & Stahler, Paper I 1999ApJ...525..772P 1999ApJ...525..772P
Palla & Stahler, Paper II 2000ApJ...540..255P 2000ApJ...540..255P
(End) James Marcout, Patricia Bauer [CDS] 26-Mar-2003