J/ApJS/238/29 IGRINS spectral library (Park+, 2018)
IGRINS spectral library.
Park S., Lee J.-E., Kang W., Lee S.-G., Chun M.-Y., Kim K.-M., Yuk I.-S.,
Lee J.-J., Mace G.N., Kim H., Kaplan K.F., Park C., Sok Oh J., Lee S.,
Jaffe D.T.
<Astrophys. J. Suppl. Ser., 238, 29 (2018)>
=2018ApJS..238...29P 2018ApJS..238...29P
ADC_Keywords: Spectra, infrared; Spectral types; Radial velocities;
Abundances, [Fe/H]; Equivalent widths
Keywords: atlases ; infrared: stars ; techniques: spectroscopic
Abstract:
We present a library of high-resolution (R∼45000) and high
signal-to-noise ratio (S/N≥200) near-infrared spectra for stars of a
wide range of spectral types and luminosity classes. The spectra were
obtained with the Immersion GRating INfrared Spectrograph covering the
full range of the H (1.496-1.780µm) and K (2.080-2.460µm)
atmospheric windows. The targets were primarily selected for being MK
standard stars covering a wide range of effective temperatures and
surface gravities, with metallicities close to the solar value.
Currently, the library includes flux-calibrated and
telluric-absorption-corrected spectra of 84 stars, with prospects for
expansion to provide denser coverage of the parametric space.
Throughout the H and K atmospheric windows, we identified spectral
lines that are sensitive to Teff or logg and defined corresponding
spectral indices. We also provide their equivalent widths (EWs). For
those indices, we derive empirical relations between the measured EWs
and the stellar atmospheric parameters. Therefore, the derived
empirical equations can be used to calculate the Teff and logg of a
star without requiring stellar atmospheric models.
Description:
The spectra in this library were obtained with the Immersion GRating
INfrared Spectrograph (IGRINS) on the 2.7m Harlan J. Smith Telescope
(HJST) at McDonald Observatory during multiple observing runs from
2014 to 2016. IGRINS provides the full spectral range of the H
(1.49-1.80um) and K (1.96-2.46um) bands with R∼45000 (corresponding to
a velocity resolution of Δν=(Δλ/λ*c)∼7km/s)
with a single exposure. IGRINS mounted at the Cassegrain focus of the
HJST has the slit size of 1"x15" and 3.5 pixel sampling across the slit.
The data presented in this paper were obtained as part of the "IGRINS
spectral library (PI : Jeong-Eun Lee)" Legacy program.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 129 84 Target information and observation log
table5.dat 326 53 Stellar atmospheric parameters and EWs of
spectral lines of late-type stars
table6.dat 31 13 Equivalent width of HeI 1.701mm of early-type stars
refs.dat 74 39 References
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See also:
B/sb9 : SB9: 9th Catalogue of Spectroscopic Binary Orbits (Pourbaix+ 2004-2014)
III/114 : Spectra of Late-Type Standards, 2.0-2.5 Microns (Kleinmann+ 1986)
III/149 : MK Standard Stars (Garcia 1989)
III/196 : Near-IR stellar spectra from 1.428 to 2.5 um (Lancon+ 1996)
III/200 : Catalogue of [Fe/H] (Cayrel de Strobel+, 1997)
III/221 : Catalogue of [Fe/H] of F, G, K stars (Cayrel de Strobel+, 2001)
VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
J/A+AS/116/239 : H band stellar spectra (Dallier+, 1996)
J/ApJ/469/355 : Teff, B-V and BC relation (Flower, 1996)
J/ApJS/107/281 : Atlas of hot, luminous stars at 2 microns (Hanson+ 1996)
J/A+AS/123/473 : Late-type star spectra (Montes+ 1997)
J/ApJ/508/397 : H-band Spectral Standards (Meyer+ 1998)
J/A+AS/128/485 : Library of UES spectra late-type stars (Montes+ 1998)
J/A+AS/137/521 : 8500-8750Å high resolution spectroscopy (Munari+, 1999)
J/ApJS/141/503 : Radial Velocities for 889 late-type stars (Nidever+, 2002)
J/A+A/406/995 : 8500-8750Å high resolution spectrosc. IV. (Marrese+, 2003)
J/ApJS/151/387 : Near-IR spectral library of late-type stars (Ivanov+, 2004)
J/A+A/430/165 : Radial velocities for 6691 K and M giants (Famaey+, 2005)
J/ApJS/161/154 : Near-IR spectral atlas of OB stars (Hanson+, 2005)
J/AN/328/889 : Mean Radial Velocities of open clusters (Kharchenko+, 2007)
J/AJ/135/209 : Rotational and RVs 761 HIP giants (Massarotti+, 2008)
J/A+A/485/303 : RVs for 1309 stars and 166 OCl (Mermilliod+, 2008)
J/AJ/140/293 : Spectroscopic study of Wolf 630 moving group (Bubar+, 2010)
J/A+A/521/A12 : Radial velocities of nearby late-type stars (Maldonado+, 2010)
J/A+A/531/A165 : MILES atmospheric parameters (Prugniel+, 2011)
J/A+A/525/A71 : Atmospheric parameters for 1273 stars (Wu+, 2011)
J/A+A/538/A143 : Atmospheric parameters of stars for UV models (Koleva+, 2012)
J/A+A/539/A109 : CRIRES-POP: high res. IR spectra library (Lebzelter+, 2012)
J/ApJ/748/93 : K-band spectra for 133 nearby M dwarfs (Rojas-Ayala+, 2012)
J/ApJ/758/56 : Young M dwarfs within 25pc. II. Kinematics (Shkolnik+, 2012)
J/A+A/549/A129 : Equivalent widths of cool stars (Cesetti+, 2013)
J/AJ/145/102 : Bright M dwarfs spectroscopy in northern sky (Lepine+, 2013)
J/A+A/556/A150 : SWEETCat I. Stellar parameters for host stars (Santos+, 2013)
J/A+A/552/A64 : Gaia-RVS standards (Soubiran+, 2013)
J/ApJ/791/54 : Nearby M Dwarfs parameters (Gaidos+, 2014)
J/AJ/147/137 : Atmospheric parameters in luminous stars (Luck, 2014)
J/A+A/574/A50 : Chemical abundances of giants and subgiants (Jofre+, 2015)
J/ApJ/802/L10 : M dwarf SpeX NIR spectroscopy (Terrien+, 2015)
J/ApJ/819/103 : Abundances of two very metal-poor stars (Afsar+, 2016)
http://kgmt.kasi.re.kr/kgmtscience/kgmt_igrins/legacy/selected.html : Korean
IGRINS Legacy Program
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Object name
11- 13 A3 --- Flag Reduction flags (1)
15- 24 A10 --- SpT Spectral Type and Luminosity Class
26- 31 F6.3 mag Hmag [-0.8/7.6] 2MASS H band magnitude
33- 37 F5.3 mag e_Hmag [0.01/0.3] Uncertainty in Hmag
39- 44 F6.3 mag Ksmag [-1/7.5] 2MASS Ks band magnitude
46- 50 F5.3 mag e_Ksmag [0/9]? Uncertainty in Kmag
52- 62 A11 "Y/M/D" Date UT date of observation
64- 66 I3 s Exp [1/600] Exposure time per coadd
68- 69 I2 --- Nobs [3/12] Number of Coadds
71- 74 I4 s ExpTot [4/2400] Total exposure time; Exp*Nobs
76- 78 I3 --- S/N [99/455] Signal-to-noise at 2.2um (2)
80- 88 A9 --- A0V Telluric standard star of each target
90- 95 F6.2 km/s HRV [-30/29.3] Heliocentric radial velocity;
from RVel using rvcorrect/IRAF
97-102 F6.2 km/s RVel [-84.7/65.4] Radial velocity, from literature
or this work
104-107 F4.2 km/s e_RVel [0/0.1]? Uncertainty in RVel; quoted only
for RVel from this work
109-110 A2 --- f_RVel Flag on RVel; dd=Estimated RVel from this work
112-114 I3 --- r_RVel ? Reference of the radial velocity
(see refs.dat file)
116-129 A14 --- Ref Reference(s) of the target selection
(see refs.dat file)
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Note (1): Reduction flags as follows:
a = Targets with a reduction problem; the order shapes are not flattened well.
The spectra of these targets will be provided as normalized spectra.
d = Targets with a reduction problem; the Brackett lines are not removed
completely.
dd = Estimated radial velocity in this work.
Note (2): The S/N for each star is the median of the S/N value per resolution
element for lambda from 2.21∼2.24um.
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Object name
11- 14 A4 --- SpT Spectral Type
16- 21 A6 --- Lum Luminosity Class
23- 26 I4 K Teff [3209/7400] Effective Temperature
28- 28 A1 --- f_Teff [b] Flag on Teff (1)
30- 32 I3 K e_Teff [12/250] Uncertainty in Teff
34- 37 F4.2 [cm/s2] logg [0.6/5]? Surface Gravity
39- 42 F4.2 [cm/s2] e_logg [0.02/0.3]? Uncertainty in logg
44- 48 F5.2 0.1nm [Fe/H] [-0.9/0.5]? Metallicity
50- 53 F4.2 0.1nm e_[Fe/H] [0.03/0.2]? Uncertainty in [Fe/H]
55- 59 F5.3 0.1nm FeI1.534 [0.05/0.7] Fe I 1.534 equivalent width
61- 65 F5.3 0.1nm e_FeI1.534 [0.001/0.005] Uncertainty in FeI1.534
67- 71 F5.3 0.1nm FeI1.563 [0.02/0.6] Fe I 1.563 equivalent width
73- 77 F5.3 0.1nm e_FeI1.563 [0.001/0.05] Uncertainty in FeI1.563
79- 83 F5.3 0.1nm MgI1.575 [0.01/1] Mg I 1.575 equivalent width
85- 89 F5.3 0.1nm e_MgI1.575 [0.001/0.03] Uncertainty in MgI1.575
91- 95 F5.3 0.1nm FeI1.580 [0.04/0.5]? Fe I 1.580 equivalent width
97-101 F5.3 0.1nm e_FeI1.580 [0.001/0.04]? Uncertainty in FeI1.580
103-107 F5.3 0.1nm FeI1.629 [0.05/0.3] Fe I 1.629 equivalent width
109-113 F5.3 0.1nm e_FeI1.629 [0.001/0.02] Uncertainty in FeI1.629
115-119 F5.3 0.1nm FeI1.649 [0.07/0.6] Fe I 1.649 equivalent width
121-125 F5.3 0.1nm e_FeI1.649 [0.001/0.02] Uncertainty in FeI1.649
127-131 F5.3 0.1nm AlI1.672 [0.1/1.1] Al I 1.672 equivalent width
133-137 F5.3 0.1nm e_AlI1.672 [0.001/0.02] Uncertainty in AlI1.672
139-143 F5.3 0.1nm AlI1.677 [0.04/0.7] Al I 1.677 equivalent width
145-149 F5.3 0.1nm e_AlI1.677 [0.001/0.03] Uncertainty in AlI1.677
151-155 F5.3 0.1nm MgI1.711 [0.09/1.8] Mg I 1.711 equivalent width
157-161 F5.3 0.1nm e_MgI1.711 [0.001/0.3] Uncertainty in MgI1.711
163-167 F5.3 0.1nm CaI1.978 [0.3/2.7] Ca I 1.978 equivalent width
169-173 F5.3 0.1nm e_CaI1.978 [0.002/0.05] Uncertainty in CaI1.978
175-179 F5.3 0.1nm AlI2.110 [0.1/1]? Al I 2.110 equivalent width
181-185 F5.3 0.1nm e_AlI2.110 [0.002/0.4]? Uncertainty in AlI2.110
187-191 F5.3 0.1nm AlI2.117 [0.1/1.3]? Al I 2.117 equivalent width
193-197 F5.3 0.1nm e_AlI2.117 [0.002/0.04]? Uncertainty in AlI2.117
199-203 F5.3 0.1nm NaI2.209 [0.09/1.6] Na I 2.209 equivalent width
205-209 F5.3 0.1nm e_NaI2.209 [0.001/0.02] Uncertainty in NaI2.209
211-215 F5.3 0.1nm TiI2.222 [0.01/0.5]? Ti I 2.222 equivalent width
217-221 F5.3 0.1nm e_TiI2.222 [0.001/0.03]? Uncertainty in TiI2.222
223-227 F5.3 0.1nm TiI2.224 [0.01/0.8]? Ti I 2.224 equivalent width
229-233 F5.3 0.1nm e_TiI2.224 [0.001/0.04]? Uncertainty in TiI2.224
235-239 F5.3 0.1nm FeI2.226 [0.02/0.4]? Fe I 2.226 equivalent width
241-245 F5.3 0.1nm e_FeI2.226 [0.001/0.05]? Uncertainty in FeI2.226
247-251 F5.3 0.1nm TiI2.232 [0.01/0.5]? Ti I 2.232 equivalent width
253-257 F5.3 0.1nm e_TiI2.232 [0.001/0.04]? Uncertainty in TiI2.232
259-264 F6.3 0.1nm TiI2.245 [0.007/0.4]? Ti I 2.245 equivalent width
266-270 F5.3 0.1nm e_TiI2.245 [0/0.3]? Uncertainty in TiI2.245
272-276 F5.3 0.1nm FeI2.248 [0.03/0.5] Fe I 2.248 equivalent width
278-282 F5.3 0.1nm e_FeI2.248 [0.001/0.02] Uncertainty in FeI2.248
284-288 F5.3 0.1nm CaI2.266 [0.1/0.6]? Ca I 2.266 equivalent width
290-294 F5.3 0.1nm e_CaI2.266 [0.002/0.02]? Uncertainty in CaI2.266
296-300 F5.3 0.1nm MgI2.281 [0.06/1.1]? Mg I 2.281 equivalent width
302-306 F5.3 0.1nm e_MgI2.281 [0.002/0.04]? Uncertainty in MgI2.281
308-312 F5.3 0.1nm CO2.293 [0.2/6]? CO v=2-0 2.293 equivalent width
314-318 F5.3 0.1nm e_CO2.293 [0.004/0.03]? Uncertainty in CO2.293
320-326 A7 --- Ref Reference(s) of stellar atmospheric
parameters (see refs.dat file)
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Note (1): For stars without Teff information from the literature, Teff was
calculated by the Teff--(B-V) relation (Flower 1996, J/ApJ/469/355 ;
Torres 2010AJ....140.1158T 2010AJ....140.1158T). The standard deviation (200K) of the
differences between Teff (Ref.) and Teff (B-V) for common stars is
adopted as the error of Teff derived by the Teff--(B-V) relation.
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Early-type star name
11- 19 A9 --- SpT Spectral type
21- 25 F5.3 0.1nm EW [0.2/2.8] HeI 1.701um equivalent width
27- 31 F5.3 0.1nm e_EW [0.004/0.9] EW uncertainty
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Ref Reference code
5- 23 A19 --- BibCode Bibcode of the reference
25- 42 A18 --- Auth First author's name(s)
44- 74 A31 --- Comm Comment
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 30-Nov-2018