H-Band spectroscopic classification of OB stars

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dc.contributor.author Blum, Robert en_US
dc.contributor.author Ramond, T. en_US
dc.contributor.author Conti, P. en_US
dc.contributor.author Figer, Donald en_US
dc.contributor.author Sellgren, K. en_US
dc.date.accessioned 2006-06-15T19:57:46Z en_US
dc.date.available 2006-06-15T19:57:46Z en_US
dc.date.issued 1997-05 en_US
dc.identifier.citation Astronomical Journal 113 (1997) 855-1859 en_US
dc.identifier.issn 1538-3881 en_US
dc.identifier.uri http://hdl.handle.net/1850/2014 en_US
dc.description Also archived at: arXiv:astro-ph/9702237 v1 27 Feb 1997 en_US
dc.description.abstract We present a new spectroscopic classification for OB stars based on H-band (1.5 micron to 1.8 micron) observations of a sample of stars with optical spectral types. Our initial sample of nine stars demonstrates that the combination of He I 1.7002 micron and H Brackett series absorption can be used to determine spectral types for stars between about O4 and B7 (to within about 2 sub-types). We find that the Brackett series exhibits luminosity effects similar to the Balmer series for the B stars. This classification scheme will be useful in studies of optically obscured high mass star forming regions. In addition, we present spectra for the OB stars near 1.1 micron and 1.3 micron which may be of use in analyzing their atmospheres and winds. en_US
dc.description.sponsorship Support for this work was provided by NASA through grant number HF 01067.01 – 94A from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5–26555. OSIRIS was built with support from NSF grants AST 90–16112 and AST 9218449. This work was also supported by NSF grant AST 93–14808. en_US
dc.format.extent 148924 bytes en_US
dc.format.mimetype application/pdf en_US
dc.language.iso en_US en_US
dc.publisher Astronomical Journal en_US
dc.relation RIT Scholars content from RIT Digital Media Library has moved from http://ritdml.rit.edu/handle/1850/2014 to RIT Scholar Works http://scholarworks.rit.edu/article/1133, please update your feeds & links!
dc.subject Classification en_US
dc.subject H-Band en_US
dc.subject OB stars en_US
dc.subject Spectral types en_US
dc.subject Spectroscopic classification en_US
dc.title H-Band spectroscopic classification of OB stars en_US
dc.type Article en_US

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