J/AJ/165/51 Stellar properties in SFRs from SDSS APOGEE-2 (Roman-Zuniga+, 2023)
Stellar Properties for a Comprehensive Collection of Star-forming Regions in the
SDSS APOGEE-2 Survey.
Roman-Zuniga C.G., Kounkel M., Hernandez J., Ramirez K.P.,
Lopez-Valdivia R., Covey K.R., Stutz A.M., Roman-Lopes A., Campbell H.,
Khilfeh E., Tapia M., Stringfellow G.S., Downes J.J., Stassun K.G.,
Minniti D., Bayo A., Kim J.S., Suarez G., Ybarra J.E.,
Fernandez-Trincado J.G., Longa-Pena P., Ramirez-Preciado V., Serna J.,
Lane R.R., Garcia-Hernandez D.A., Beaton R.L., Bizyaev D., Pan K.
<Astron. J., 165, 51 (2023)>
=2023AJ....165...51R 2023AJ....165...51R
ADC_Keywords: Star Forming Region; Stars, pre-main sequence; Stars, ages;
Stars, masses; Photometry, infrared; Extinction
Keywords: Young star clusters ; Pre-main sequence stars ; Star forming
regions ; Fundamental parameters of stars ; Near infrared
astronomy
Abstract:
The Sloan Digital Sky Survey IV APOGEE-2 primary science goal was to
observe red giant stars throughout the Galaxy to study its dynamics,
morphology, and chemical evolution. The APOGEE instrument, a
high-resolution 300-fiber H-band (1.55-1.71µm) spectrograph, is
also ideal to study other stellar populations in the Galaxy, among
which are a number of star-forming regions and young open clusters. We
present the results of the determination of six stellar properties
(Teff, logg, [Fe/H], L/L☉, M/M☉, and age) for a sample that is
composed of 3360 young stars, of subsolar to supersolar types, in 16
Galactic star formation and young open cluster regions. Those sources
were selected by using a clustering method that removes most of the
field contamination. Samples were also refined by removing targets
affected by various systematic effects of the parameter determination.
The final samples are presented in a comprehensive catalog that
includes all six estimated parameters. This overview study also
includes parameter spatial distribution maps for all regions and
Hertzsprung-Russell (log(L/L☉ vs. Teff) diagrams. This study
serves as a guide for detailed studies on individual regions and paves
the way for the future studies on the global properties of stars in
the pre-main-sequence phase of stellar evolution using more robust
samples.
Description:
The APOGEE and APOGEE-2 programs in SDSS used state-of-the-art fiber
spectrographs, which use a circular field-of-view (FOV) radius and
capacity for up to 300 simultaneous fiber observations. The fibers are
bundled for transmission to the bench spectrographs, where dispersed
light is collected onto three near-IR detectors that divide each
spectrum into three windows: blue 15145-15810Å, green
15860-16430Å, and red 16480-16950Å.
One of the spectrographs is installed in the Northern Hemisphere
(APOGEE-N), on the Apache Point Observatory 2.5m Sloan telescope, and
the other one is located in the Southern Hemisphere (APOGEE-S), on the
Las Campanas Observatory 2.5m Du Pont telescope.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 184 3727 Probable region members
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See also:
B/simbad : Simbad objects catalogue (M.Wenger 2000)
I/352 : Distances to 1.47 billion stars in Gaia EDR3 (Bailer-Jones+, 2021)
J/AJ/121/2124 : λ Ori pre-main-sequence stars photometry (Dolan+, 2001)
J/AJ/123/387 : VRI photometry of λOri SFR (Dolan+, 2002)
J/A+A/397/177 : IR star clusters and stellar groups catalog (Bica+, 2003)
J/AJ/126/1916 : JHK photometry of young clusters near the Sun (Porras+, 2003)
J/A+A/533/A109 : Pisa pre-main sequence tracks and isochrones (Tognelli+, 2011)
J/A+A/557/A29 : Young stellar clusters in the Rosette (Cambresy+, 2013)
J/ApJS/208/9 : Intrinsic colors and temperatures of PMS stars (Pecaut+, 2013)
J/ApJ/794/125 : IN-SYNC. I. APOGEE stellar parameters (Cottaar+, 2014)
J/ApJ/807/27 : IN-SYNC III. Radial velocities of IC348 stars (Cottaar+, 2015)
J/ApJ/799/136 : IN-SYNC. II. Candidate young stars in NGC 1333 (Foster+, 2015)
J/ApJ/818/59 : IN-SYNC. IV. YSOs in Orion A (Da Rio+, 2016)
J/AJ/151/144 : ASPCAP weights for 15 APOGEE chemical elements (Garcia+, 2016)
J/A+A/601/A70 : GES; pre-main-sequence clusters [Fe/H] (Spina+, 2017)
J/ApJS/236/27 : APOGEE-2 survey of Orion Complex (OSFC). I. (Cottle+, 2018)
J/AJ/156/75 : Circumstellar disks in Upper Sco association (Esplin+, 2018)
J/MNRAS/476/908 : Chromospheric activity in 4 open clusters (Fang+, 2018)
J/AJ/156/84 : APOGEE-2 survey of Orion Complex. II. (Kounkel+, 2018)
J/ApJ/855/68 : Massive stars in SDSS-IV/APOGEE SURVEY I. (Roman-Lopes+, 2018)
J/ApJ/869/72 : IN-SYNC. VIII. YSOs in NGC1333, IC348 and Orion A (Yao+, 2018)
J/AJ/157/85 : The CIDA Variability Survey of Orion OB1. II. (Briceno+, 2019)
J/A+A/630/A137 : Structure and kinematics of the Taurus region (Galli+, 2019)
J/A+A/628/A110 : Photometry of submm cores in Vela C (Massi+, 2019)
J/MNRAS/486/2477 : Catalogue of members of NGC 6530 (Wright+, 2019)
J/A+A/634/A34 : Complete line list and solar values (Baratella+, 2020)
J/A+A/642/A56 : Diagnostic for accretion/outflow in NGC 2264 (Bonito+, 2020)
J/AJ/160/186 : Gaia survey stars associated with Lupus Clouds (Luhman, 2020)
J/AJ/159/182 : APOGEE Net, YSOs param. through deep learning (Olney+, 2020)
J/ApJ/894/5 : APOGEE2-N NIR spectra of Btype stars (Ramirez-Preciado+, 2020)
J/ApJS/247/17 : Massive stars in APOGEE2 Survey. III. (Roman-Lopes+, 2020)
J/A+A/646/A104 : Improving the open cluster census. I. (Hunt+, 2021)
J/ApJ/914/28 : G305 SFR. II. Irregular var. stars (Medina+, 2021)
J/AJ/163/152 : Stellar param. for ∼650000 stars with APOGEE (Sprague+, 2022)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 22 A22 --- Region Region identifier
24- 41 A18 --- APOGEE Probable member APOGEE identifier
43- 52 F10.6 deg RAdeg [34/311] Right Ascension (J2000)
54- 63 F10.6 deg DEdeg [-61/63] Declination (J2000)
65- 68 F4.1 mag AV [0/10.6] V band extinction
70- 73 F4.2 mag E_AV [0/0.7] Upper uncertainty in AV
75- 78 F4.2 mag e_AV [0/0.6] Lower uncertainty in Rgeo
80- 86 F7.2 pc Dist [113/3351] Geometric distance estimate
88- 94 F7.2 pc E_Dist [0.1/1119] Upper uncertainty in Dist
96-102 F7.2 pc e_Dist [0.2/1905] Lower uncertainty in Dist
104-107 F4.2 [K] [Teff] [3.48/4.27] log effective temperature
109-113 F5.3 [K] e_[Teff] [0/0.03] Uncertainty in [Teff]
115-118 F4.2 [cm/s2] logg [2.81/4.87]? log surface gravity
120-124 F5.3 [cm/s2] e_logg [0.005/0.3]? Uncertainty in log(g)
126-130 F5.2 [Sun] [Fe/H] [-0.35/0.09]? Metallicity
132-136 F5.3 [Sun] e_[Fe/H] [0.001/0.1]? Uncertainty in [Fe/H]
138-142 F5.2 [Lsun] [Lum] [-1.86/3.31]? log luminosity
144-148 F5.3 [Lsun] e_[Lum] [0.008/0.4]? Uncertainty in [Lum]
150-153 F4.1 Msun Mass [0.1/67.0]? Mass
155-159 F5.2 Msun E_Mass [0/66.3]? Upper uncertainty in Mass
161-165 F5.2 Msun e_Mass [0/66.2]? Lower uncertainty in Mass
167-171 F5.1 Myr Age [0.5/222]? Age
173-177 F5.2 Myr E_Age [0.01/53]? Upper uncertainty in Age
179-184 F6.2 Myr e_Age [0.02/101]? Lower uncertainty in Age
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 26-May-2023