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HD 97516


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Subaru K-Band Spectroscopy of Low-Mass Protostars in Taurus
We present K-band spectra of five Class I objects in the Taurusmolecular cloud. The high-sensitivity and high-spatial resolutionobservations using the Subaru Telescope enabled us to detect theemission lines of Brγ and H2 in four and two objects,respectively, and photospheric absorption lines in two objects. From theabsorption lines, the effective temperature, stellar luminosity, and theamount of veiling were estimated for the two objects (IRAS 04016+2610and IRAS 04248+2612). We conclude that the amount of circumstellaremission is much higher in IRAS 04016 (rK=7-10) than IRAS04248 (rK~2), while the stellar properties are similarbetween the two objects. Apart from the stellar spectra, the nebularspectra were obtained for IRAS 04016 and IRAS 04248. The reflectionnebulae of the Class I objects were verified from a spectroscopicviewpoint for the first time: we found that the nebular spectra areexplained as the scattered light from the central young stellar objectswith the difference of the line-of-sight extinction between the star andnebula, ΔAV~2-9 mag.Based on data collected at the Subaru Telescope, which is operated bythe National Astronomical Observatory of Japan.

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Observation and Astrometry data

Constellation:コップ座
Right ascension:11h13m17.67s
Declination:-13°48'11.7"
Apparent magnitude:8.823
Distance:301.205 parsecs
Proper motion RA:-15.1
Proper motion Dec:-9.8
B-T magnitude:8.949
V-T magnitude:8.834

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 97516
TYCHO-2 2000TYC 5507-722-1
USNO-A2.0USNO-A2 0750-07488040
HIPHIP 54815

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