منابع مشابه
Ten-micron Observations of Nearby Young Stars
We present new 10μm photometry of 21 nearby young stars obtained at the Palomar 5-meter and at the Keck I 10-meter telescopes as part of a program to search for dust in the habitable zone of young stars. Thirteen of the stars are in the F–K spectral type range (“solar analogs”), 4 have B or A spectral types, and 4 have spectral type M. We confirm existing IRAS 12μm and ground-based 10μm photome...
متن کاملA Medium Resolution Near - Infrared Spectral Atlas of O and Early B Stars
We present intermediate resolution (R ∼ 8,000-12,000) high signal-to-noise H− and K−band spectroscopy of a sample of 37 optically visible stars, ranging in spectral type from O3 to B3 and representing most luminosity classes. Spectra of this quality can be used to constrain the temperature, luminosity and general wind properties of OB stars, when used in conjunction with sophisticated atmospher...
متن کاملAn Atlas of Spectrophotometric Landolt Standard Stars
We present CCD observations of 102 Landolt standard stars obtained with the R-C spectrograph on the CTIO 1.5 m telescope. Using stellar atmosphere models we have extended the flux points to our six spectrophotometric secondary standards, in both the blue and the red, allowing us to produce flux-calibrated spectra that span a wavelength range from 3050 Å to 1.1 μm. We find mean differences betwe...
متن کاملMassive Stars as Important Contributors to Two Micron Light
Near infrared light at 2m is relatively insensitive to the presence of hot young stars and dust in galaxies, and there has been recent interest in using it as a mass tracer in spiral galaxies. I present evidence that young, cool supergiant stars, whose presence is indicated by strong CO absorption in a 2:36m bandpass, dominate the 2m light from active star forming regions in the galaxy NGC 1309...
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ژورنال
عنوان ژورنال: The Astrophysical Journal Supplement Series
سال: 2002
ISSN: 0067-0049,1538-4365
DOI: 10.1086/341176