X-ray/optical observations of A8-G2V stars (Piters+ 1998)

Details X-ray/optical observations of A8-G2V stars (Piters+ 1998) X-ray/optical observations of A8-G2V stars (Piters+ 1998)

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997ycat..41280029p&link_type=abstract

VizieR On-line Data Catalog: J/A+AS/128/29. Originally published in: 1998A&AS..128...29P

Computer Science

Stars: Dwarfs, Photometry: Vbluw, Effective Temperatures, X-Ray Sources

Scientific paper

Table 1 lists the sample of 173 stars observed for this study. They are selected from the Bright Star Catalogue (Cat. ), with the following selection criteria: - Spectral type between A8 and G2; no spectral peculiarities noted; not double in spectral type classification (e.g., HR 32 with spectral type F2V+F6V is excluded); - Luminosity class V; - Right ascension between 0h and 2h, or between 14h and 24 h, declination south of +10 degrees (defining the region on the sky visible during the appointed observation times); - Binaries for which both components occurred in the BSC are excluded, if the separation is less than 10". Not listed are five stars for which no (Walraven photometric and ROSAT X-ray) data are available. These are HR 591, HR 5542, HR 6593, HR 8245 and HR 8735. Table 2 lists the Walraven photometric (VBLUW) data for all but four stars from Table 1. Also listed in Table 2 are the effective temperature, surface gravity and the reddening, as derived from comparison with theoretical colours. Table 5 lists the ROSAT All Sky Survey data for all but 11 stars from Table 1. For a description of the Walraven photometric system, see e.g. (3 data files).

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