2020RNAAS...4..111M

Query : 2020RNAAS...4..111M

2020RNAAS...4..111M - Research Notes of the AAS, 4, 111 (2020/July-0)

The Far-ultraviolet Variations of 17 Com.

MONIER R.

Abstract (from CDS):

All the archival International Ultraviolet Explorer spectra of 17 Com, the most massive member of the open cluster Coma Berenices, are used to show that the far-ultraviolet spectral energy distribution shows large variations at wavelengths shorter than 1800 Å. The large far-ultraviolet variations are most likely due to spots or belts of overabundant elements (chromium in particular) which come and go into the line of sight as the star rotates.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Chemically peculiar 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 - 2026 		#notes
1 Cl Melotte 111 OpC 12 11 54.9 +25 16 36           ~ 520 0
2 HD 108651 SB* 12 28 44.5650287472 +25 53 57.557921208   6.82 6.61     kA2hA9VmF0 174 0
3 * 17 Com a2* 12 28 54.7022406648 +25 54 46.265813136   5.208 5.236     B9VCrEu 288 0
4 * 21 Com a2* 12 31 00.5605002264 +24 34 01.797245328   5.496 5.436     A2pv 295 0
5 * o Vir a2* 13 34 07.9312445507 +03 39 32.288960317 4.96 4.96 4.94 4.86 4.89 ApEuCrSr 356 0
6 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0V 2787 1

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