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HD 25373


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Optical identification and study of X-ray selected weak emission-line T Tauri stars in the Taurus-Auriga outskirts based on ROSAT pointing observations
Optical spectroscopic identification of X-ray selected WTTS (weakemission-line T Tauri stars) candidates in the Taurus-Auriga outskirtson the basis of ROSAT pointing observations, has resulted in thediscovery of 4 WTTS and several other Li-rich sources. This paper givesthe R magnitudes, coordinates (J2000) from USNO (V1.0), spectral typeclassifications, equivalent widths of LiI absorption andHα emission lines of all the X-ray sourcesinvestigated, and the proper motions and parallaxes of some of them, aswell as the spectra of the newly discovered WTTS. For the first time,the spatial distribution of a rather complete, ROSAT-discovered sampleof WTTS, including those identified from the ROSAT All-Sky Survey andPSPC pointing observations around one of the nearby star-forming regionshas been provided, together with a preliminary analysis.

Optical identification and study of X-ray selected WTTS in the Taurus-Auriga outskirts based on ROSAT pointing observations.
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Observation and Astrometry data

Constellation:Perseus
Right ascension:04h03m13.00s
Declination:+34°50'00.5"
Apparent magnitude:7.631
Distance:413.223 parsecs
Proper motion RA:16
Proper motion Dec:-21.1
B-T magnitude:9.164
V-T magnitude:7.758

Catalogs and designations:
Proper Names
HD 1989HD 25373
TYCHO-2 2000TYC 2366-2605-1
USNO-A2.0USNO-A2 1200-01929653
HIPHIP 18914

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