1999ApJ...525.1009A

Query : 1999ApJ...525.1009A

1999ApJ...525.1009A - Astrophys. J., 525, 1009-1010 (1999/November-2)

Digging deeper in the coronal graveyard: postscript.

AYRES T.R.

Abstract (from CDS):

An X-ray upper limit–from the ROSAT High Resolution Imager–is presented for ε Corvi (HD 105707), a K2 giant that lies in the ``noncoronal'' zone of the Hertzsprung-Russell diagram, but which previously was detected by the Hubble Space Telescope Goddard High Resolution Spectrograph in far-ultraviolet coronal proxies. The new measurement strengthens the anticorrelation between coronal X-rays and λ1380 carbon monoxide emission among the red giants.

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Journal keyword(s): Stars: Coronae - stars: individual (ε Corvi) - Ultraviolet: Stars - X-Rays: Stars

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 * bet Gem PM* 07 45 18.94987 +28 01 34.3160 3.00 2.14 1.14 0.39 -0.11 K0IIIb 1101 2
2 * eps Crv PM* 12 10 07.4805825 -22 37 11.161983 5.79 4.32 2.98 2.05 1.41 K2+IIIa 146 0
3 * alf Boo RG* 14 15 39.67207 +19 10 56.6730 2.46 1.18 -0.05 -1.03 -1.68 K1.5IIIFe-0.5 2318 1
4 * bet UMi V* 14 50 42.32580 +74 09 19.8142 5.32 3.55 2.08 0.97 0.21 K4-III 327 1
5 * eps Sco PM* 16 50 09.8108127 -34 17 35.633735 4.61 3.45 2.29 1.43 0.83 K1III 217 0
6 * gam Dra * 17 56 36.36988 +51 29 20.0242 5.630 3.760 2.230 1.08 0.23 K5III 562 1

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