J/A+A/562/A127 Near-IR integral field spectra of 15 M-L dwarfs (Bonnefoy+, 2014)
A library of near-infrared integral field spectra of young M-L dwarfs.
Bonnefoy M., Chauvin G., Lagrange A.-M., Rojo P., Allard F., Pinte C.,
Dumas C., Homeier D.
<Astron. Astrophys. 562, A127 (2014)>
=2014A&A...562A.127B 2014A&A...562A.127B
ADC_Keywords: Stars, dwarfs ; Stars, late-type ; Spectra, infrared
Keywords: stars: low mass - brown dwarfs - planetary systems -
techniques: spectroscopic
Abstract:
At young ages, low surface gravity affects the atmospheric properties
of ultracool dwarfs. The impact on medium-resolution near-infrared
(NIR) spectra has only been slightly investigated at the M-L
transition sofar.
We present a library of near-infrared (1.1-2.45um) medium-resolution
(R∼1500-2000) integral field spectra of 15 young M6-L0 dwarfs. We aim
at deriving updated NIR spectral type, luminosity and physical
parameters (Teff, logg, M, L/L☉) of each source. This work also
aims at testing the latest generation of BT-SETTL atmospheric models.
We estimated spectral types using spectral indices and spectra of
reference young objects classified in the optical. We used the 2010
and 2012 releases of the BT-SETTL synthetic spectral grid and
cross-checked the results with the DRIFT-PHOENIX models to derive the
atmospheric properties of the sources.
Description:
Targets were observed from October 19, 2006 to May 19, 2009 with the
Spectrograph for INtegral Field Observations in the Near Infrared
(SINFONI).
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
stars.dat 173 18 List of studied stars
sp/* . 25 Individual FITS spectra
--------------------------------------------------------------------------------
See also:
J/A+A/503/639 : NIR spectral of M-T dwarfs (Testi, 2009)
J/AJ/131/2722 : New L and T dwarfs from the SDSS (Chiu+, 2006)
J/A+A/542/A33 : 3 M dwarfs near-infrared spectra (Onehag+, 2012)
J/AJ/144/99 : Near-IR spectroscopy of 36 late M dwarfs (Deshpande+, 2012)
Byte-by-byte Description of file: stars.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 A12 --- Name Name
14- 15 I2 h RAh Simbad Hour of Right Ascension (J2000.0)
17- 18 I2 min RAm Simbad Minute of Right Ascension (J2000.0)
20- 24 F5.2 s RAs Simbad Second of Right Ascension (J2000.0)
26 A1 --- DE- Simbad Sign of the Declination (J2000.0)
27- 28 I2 deg DEd Simbad Degree of Declination (J2000.0)
30- 31 I2 arcmin DEm Simbad Arcminute of Declination (J2000.0)
33- 36 F4.1 arcsec DEs Simbad Arcsecond of Declination (J2000.0)
38- 42 F5.2 mag Bmag ? Simbad B band magnitude
44- 48 F5.2 mag Vmag ? Simbad V band magnitude
50- 56 A7 --- SpT Simbad MK spectral type
57- 79 A23 --- SName Simbad name
81-128 A48 --- FileName1 Name of the FITS file with JHK or J data
in subdirectory sp
129-173 A45 --- FileName2 Name of the FITS file with HK data (J data
in FileName1) in subdirectory sp
--------------------------------------------------------------------------------
History:
Copied at http://ipag.osug.fr/~chauving/addmaterial.html
(End) Patricia Vannier [CDS] 04-Feb-2014