J/A+A/615/L12 2MASS J04183483+2131275 spectrum (Lodieu+, 2018)
Lithium in the Hyades L5 brown dwarf 2MASS J04183483+2131275.
Lodieu N., Rebolo R., Perez-Garrido A.
<Astron. Astrophys. 615, L12 (2018)>
=2018A&A...615L..12L 2018A&A...615L..12L (SIMBAD/NED BibCode)
ADC_Keywords: Stars, dwarfs; Stars, M-type ; Spectra, optical
Keywords: stars: low-mass - brown dwarfs -
open clusters and associations: individual: Hyades -
techniques: spectroscopic - surveys
Abstract:
We used the 10.4-m Gran Telescopio Canarias (GTC) with its
low-dispersion optical spectrograph to obtain 10 spectra of 2277s each
covering the range 6300-10300 Angstroms with a resolving power of
R∼500 for the Hyades brown dwarf 2MASSJ04183483+2131275. We detect
lithium in absorption and Halpha in emission in this combined
spectrum.
Description:
Low-resolution optical spectra of 2MASSJ04183483+2131275 obtained with
the OSIRIS instrument mounted on the Gran Telescopio de Canarias (GTC;
grating R1000R, slit=1.2 arcsec) at Observatorio del Roque de los
Muchachos (La Palma, Spain) over several nights between 23 January and
28 February 2017 as part of programme GTC77-16B (PI Perez-Garrido).
Objects:
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RA (2000) DE Designation(s)
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04 18 34.83 +21 31 27.5 2MASSJ04183483+2131275 = SDSS J041834.87+213127.3
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
spec0418.dat 19 1503 GTC/OSIRIS optical spectrum of
2MASS J04183483+2131275 (2MASS0418+21)
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See also:
J/A+A/564/A55 : 1.1-2.4um spectra of 7 young M and L dwarfs (Manjavacas+, 2014)
J/A+A/579/A58 : Spectra of two mid-L subdwarfs (Lodieu+, 2015)
Byte-by-byte Description of file: spec0418.dat
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Bytes Format Units Label Explanations
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1- 8 F8.2 0.1nm Lambda [6314.8/10396.2] Wavelength in Angstroms
10- 19 F10.7 10mW/m2/nm Flux [0.02/23.8] Flux in ergs/cm2/s/Angstrom
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Acknowledgements:
Nicolas Lodieu, nlodieu(at)iac.es
(End) Nicolas Lodieu (IAC, Tenerife, Spain), Patricia Vannier [CDS] 10-Jul-2018