J/ApJ/877/13 Member stars of the GD-1 tidal stream (Huang+, 2019)
Member stars of the GD-1 tidal stream from the SDSS, LAMOST, and Gaia surveys.
Huang Y., Chen B.-Q., Zhang H.-W., Yuan H.-B., Xiang M.-S., Wang C.,
Tian Z.-J., Liu X.-W.
<Astrophys. J., 877, 13 (2019)>
=2019ApJ...877...13H 2019ApJ...877...13H
ADC_Keywords: Photometry, SDSS; Abundances, [Fe/H]; Proper motions; Surveys
Keywords: Galaxy: fundamental parameters ; Galaxy: halo ; Galaxy: structure
Abstract:
With the photometric data from the SDSS survey, the spectroscopic data
from the SDSS/SEGUE and the LAMOST surveys, and the astrometric data
from the Gaia DR2, we have identified 67 highly probable member stars
of the GD-1 cold stellar stream spread along almost its entire length
(i.e., from 126° to 203° in R.A.). With the accurate
spectroscopic (i.e., metallicity and line-of-sight velocity) and
astrometric (i.e., proper motions) information, the position-velocity
diagrams, i.e., φ1-µα, φ1-µδ, and
φ1-vgsr, of the GD-1 stream are well mapped. The stream has an
average metallicity [Fe/H]=-1.96. The rich information of member stars
of the stream now available allow one not only to model its origin,
but also to place strong constraints on the mass distribution and the
gravitational potential of the Milky Way.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 105 67 Properties of the final 67 highly probable member
stars of GD-1 stream
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See also:
V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)
V/153 : LAMOST DR4 catalogs (Luo+, 2018)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
J/AJ/128/245 : M giant stars in the Sagittarius dwarf gal. (Majewski+, 2004)
J/AJ/136/2070 : SEGUE stellar param. pipeline. III. (Allende Prieto+, 2008)
J/AJ/136/2050 : SEGUE stellar param. pipeline. II. (Lee+, 2008)
J/ApJ/700/523 : Galactic star clusters in SDSS. II. Colors. (An+, 2009)
J/ApJ/697/207 : Cold stellar stream orbit fit (Willett+, 2009)
J/AJ/137/4377 : List of SEGUE plate pairs (Yanny+, 2009)
J/AJ/141/89 : SEGUE stellar parameter pipeline. IV. (Smolinski+, 2011)
J/ApJ/783/130 : Parallaxes of high mass star forming regions (Reid+, 2014)
J/MNRAS/448/822 : LAMOST candidate members of star clusters (Xiang+, 2015)
J/ApJ/823/157 : Velocities & [Fe/H] of Pal 5 tidal stream (Ishigaki+, 2016)
J/ApJ/869/122 : SDSS-DR14 and LAMOST DR6 spectra in GD-1 stream (Li+, 2018)
J/AJ/156/90 : New cat. of APOGEE RV standard stars (Huang+, 2018)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- ID Source identifier (JHHMMSS.ss+DDMMSS.s)
21- 26 F6.3 mag Gmag [14.46/19.93] Apparent Gaia G band magnitude
28- 32 F5.3 mag e_Gmag [0/0.006] Uncertainty in Gmag
34- 39 F6.3 mag gmag [14.9/20.3] Apparent SDSS g band (AB) magnitude
41- 45 F5.3 mag e_gmag [0.006/0.1] Uncertainty in gmag
47- 52 F6.3 mag rmag [14.4/19.9] Apparent SDSS r band (AB) magnitude
54- 58 F5.3 mag e_rmag [0.003/0.02] Uncertainty in rmag
60- 66 F7.2 km/s vLOS [-264.4/267.4] Line-of-Sight velocity
68- 72 F5.2 km/s e_vLOS [1.6/14.5] Uncertainty in vLOS
74- 78 F5.2 [Sun] [Fe/H] [-2.5/-1.4] Metallicity
80- 85 F6.3 mas/yr pmRA [-8.83/-2.25] Proper motion along RA
87- 91 F5.3 mas/yr e_pmRA [0.03/1.4] Uncertainty in pmRA
93- 99 F7.3 mas/yr pmDE [-14.12/-3.62] Proper motion along DE
101-105 F5.3 mas/yr e_pmDE [0.04/1.3] Uncertainty in pmDE
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 20-Nov-2020