2020MNRAS.498.3658L

Query : 2020MNRAS.498.3658L

2020MNRAS.498.3658L - Mon. Not. R. Astron. Soc., 498, 3658-3663 (2020/November-1)

Proxima Centauri - the nearest planet host observed simultaneously with AstroSat, Chandra, and HST.

LALITHA S., SCHMITT J.H.M.M., SINGH K.P., SCHNEIDER P.C., LOYD R.O.P., FRANCE K., PREDEHL P., BURWITZ V. and ROBRADE J.

Abstract (from CDS):

Our nearest stellar neighbour, Proxima Centauri, is a low-mass star with spectral type dM5.5 and hosting an Earth-like planet orbiting within its habitable zone. However, the habitability of the planet depends on the high-energy radiation of the chromospheric and coronal activity of the host star. We report the AstroSat, Chandra, and HST observation of Proxima Centauri carried out as part of the multiwavelength simultaneous observational campaign. Using the soft X-ray data, we probe the different activity states of the star. We investigate the coronal temperatures, emission measures and abundance. Finally, we compare our results with earlier observations of Proxima Centauri.

Abstract Copyright: © The Author(s) 2020 Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: activity - stars: coronae - stars: individual: Proxima Centauri - stars: late-type - stars: low-mass

Simbad objects: 3

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Number of rows : 3
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 NAME Proxima Centauri b Pl 14 29 42.9461331854 -62 40 46.164680672           ~ 445 0
2 NAME Proxima Centauri PM* 14 29 42.9461331854 -62 40 46.164680672 14.21 12.95 11.13 9.45 7.41 M5.5Ve 1483 0
3 * alf Cen ** 14 39 36.50 -60 50 02.3   0.4 -0.1     G2V+K1V 1031 0

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