2014ApJ...782...27K

Query : 2014ApJ...782...27K

2014ApJ...782...27K - Astrophys. J., 782, 27 (2014/February-2)

A reconnaissance of the possible donor stars to the Kepler supernova.

KERZENDORF W.E., CHILDRESS M., SCHARWACHTER J., DO T. and SCHMIDT B.P.

Abstract (from CDS):

The identity of Type Ia supernova progenitors remains a mystery, with various lines of evidence pointing toward either accretion from a nondegenerate companion or the rapid merger of two degenerate stars leading to the thermonuclear destruction of a white dwarf. In this paper, we spectroscopically scrutinize 24 of the brightest stars residing in the central 38''x38'' of the SN 1604 (Kepler) supernova remnant to search for a possible surviving companion star. We can rule out, with high certainty, a red giant companion star–a progenitor indicated by some models of the supernova remnant. Furthermore, we find no star that exhibits properties uniquely consistent with those expected of a donor star down to L > 10 L☉. While the distribution of star properties toward the remnant are consistent with unrelated stars, we identify the most promising candidates for further astrometric and spectroscopic follow up. Such a program would either discover the donor star or place strong limits on progenitor systems to luminosities with L {Lt} L☉.

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Journal keyword(s): ISM: supernova remnants - supernovae: individual: SN1604

Nomenclature: Table 1: [KCS2014] AN N=24 (Nos A1-R1).

Simbad objects: 29

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Number of rows : 29
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 SN 1572A SN* 00 25 21.5 +64 08 27           B8 1254 1
2 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
3 ESO 134-11 HII 14 40 29 -62 38.7           ~ 585 1
4 NAME Lupus SN SNR 15 02 22.1 -42 05 49           ~ 1407 1
5 [KCS2014] N1 * 17 30 40.2200354472 -21 29 18.934463328   18.5 16.2     ~ 2 0
6 [KCS2014] K1 * 17 30 40.3353896352 -21 29 15.189325800           ~ 2 0
7 NAME Kepler's SN SNR 17 30 40.51 -21 29 14.4           ~ 851 3
8 [KCS2014] K2 * 17 30 40.56 -21 29 13.9           ~ 1 0
9 [KCS2014] P1 * 17 30 40.5635554776 -21 29 33.853697772           ~ 2 0
10 [KCS2014] H2 * 17 30 40.60 -21 29 17.4           ~ 1 0
11 [KCS2014] L1 * 17 30 40.6137974904 -21 29 27.288600684   17.4 15.9 16.15   ~ 2 0
12 [KCS2014] H1 * 17 30 40.7050539720 -21 29 16.656946728           ~ 2 0
13 [KCS2014] P2 * 17 30 40.7291592432 -21 29 34.393044228           ~ 2 0
14 [KCS2014] F1 * 17 30 40.8956932224 -21 29 21.101477748   18.8   15.9   ~ 2 0
15 [KCS2014] G1 * 17 30 40.9505837808 -21 29 25.611542448           ~ 2 0
16 [KCS2014] D1 * 17 30 40.9835017008 -21 29 11.177221884           ~ 2 0
17 [KCS2014] B1 * 17 30 41.0815739376 -21 29 14.087029992           ~ 2 0
18 [KCS2014] B2 * 17 30 41.1853183586 -21 29 15.338328067           ~ 2 0
19 [KCS2014] I1 * 17 30 41.23 -21 29 30.1   20.3   17.1   ~ 1 0
20 [KCS2014] E3 * 17 30 41.26 -21 29 07.2           ~ 1 0
21 [KCS2014] E2 * 17 30 41.4137440816 -21 29 07.001097054           ~ 1 0
22 [KCS2014] E1 * 17 30 41.4297028477 -21 29 06.281978196           ~ 2 0
23 [KCS2014] C1 * 17 30 41.6963914176 -21 29 26.029646952       17.9   ~ 2 0
24 [KCS2014] A1 PM* 17 30 41.8143514296 -21 29 16.808585136       17.6   ~ 2 0
25 [KCS2014] M1 ** 17 30 42.10248 -21 29 01.2912       18.0   ~ 1 0
26 [KCS2014] R1 * 17 30 42.4912462848 -21 29 36.284996832       17.2   ~ 2 0
27 [KCS2014] J1 * 17 30 42.6489527736 -21 29 13.864580772   19.0   17.8   ~ 2 0
28 [KCS2014] O1 * 17 30 42.6514348320 -21 29 31.535991888   18.7 17.7 16.7   ~ 2 0
29 [KCS2014] Q1 * 17 30 42.8272454688 -21 29 02.813944236       17.8   ~ 2 0

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