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J/A+A/615/L12          2MASS J04183483+2131275 spectrum          (Lodieu+, 2018)

Lithium in the Hyades L5 brown dwarf 2MASSJ04183483+2131275. Lodieu N., Rebolo R., Perez-Garrido A. <Astron. Astrophys. 615, L12 (2018)> =2018A&A...615L..12L (SIMBAD/NED BibCode)
ADC_Keywords: Stars, dwarfs; Stars, M-type ; Spectra, optical Keywords: stars: brown dwarfs - Hyades - techniques: spectroscopic 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: ---------------------------------------------------------------------------- RA (2000) DE Designation(s) ---------------------------------------------------------------------------- 04 18 34.83 +21 31 27.5 2MASSJ04183483+2131275 = SDSS J041834.87+213127.3 ---------------------------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file spec0418.dat 19 1503 GTC/OSIRIS optical spectrum of 2MASS J04183483+2131275 (2MASS0418+21)
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
Bytes Format Units Label Explanations
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
Acknowledgements: Nicolas Lodieu, nlodieu(at)
(End) Nicolas Lodieu (IAC, Tenerife, Spain), Patricia Vannier [CDS] 10-Jul-2018
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