2004A&A...413..107S


Query : 2004A&A...413..107S

2004A&A...413..107S - Astronomy and Astrophysics, volume 413, 107-119 (2004/1-1)

A second glance at SN 2002ap and the M74 field with XMM-Newton.

SORIA R., PIAN E. and MAZZALI P.A.

Abstract (from CDS):

We have re-observed the field of M74 in January 2003 with XMM-Newton, 11 months after the X-ray detection of SN 2002ap. From a comparison of the two XMM-Newton observations we obtain more accurate values for the X-ray luminosity and colours of the source five days after the event, and a limit on its decline rate. We compare its X-ray behaviour (prompt soft X-ray emission, relatively low luminosity) with that of other type Ic SNe, and speculate that SN 2002ap may share some physical properties (low mass-loss rate and high-velocity stellar wind from the progenitor star) with the candidate hypernova/gamma-ray-burst progenitor SN 1998bw, but with a lower (non-relativistic) speed of the ejecta. We suggest that the X-ray emission observed in 2002 is likely to come from the radiatively-cooling reverse shock, at a temperature kT≃0.8keV, and that this soft component was already detected 5d after the event because the absorbing column density of the cool shell between the forward and reverse shocks was only ∼1020/cm2, i.e., the shell was optically thin in the soft X-ray band. The new XMM-Newton data also allowed us to continue monitoring two bright variable sources in M74 that had reached peak luminosities >1039erg/s in previous XMM-Newton and Chandra observations. Finally, we used two Chandra observations from 2001 to investigate the luminosity and colour distribution of the X-ray source population of M74, typical of moderately-active late-type spirals.

Abstract Copyright:

Journal keyword(s): galaxies: individual: M74 - galaxies: spiral - supernovae: individual: SN 2002ap - X-rays: binaries - X-rays: galaxies

Simbad objects: 16

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Number of rows : 16
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11792 1
2 CXOU J013623.4+154459 X 01 36 23.404 +15 44 59.89           ~ 2 0
3 SN 2002ap SN* 01 36 23.85 +15 45 13.2   13.11 14.54     SNIc-BL 528 1
4 [SK2002] J013627.2+155005 X 01 36 27.2 +15 50 05           ~ 2 0
5 2XMM J013636.4+155036 UX? 01 36 36.50 +15 50 36.3           ~ 10 0
6 M 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1553 1
7 CXOU J013651.1+154547 UX? 01 36 51.06 +15 45 46.8           ~ 26 0
8 SN 1999em SN* 04 41 27.04 -02 51 45.2   13.79 13.7     SNIIP 623 1
9 X LMC X-4 HXB 05 32 49.5556042296 -66 22 13.202721768   13.9 14.0     O8III 627 0
10 SN 1993J SN* 09 55 24.77476 +69 01 13.7026   10.8 12.0     SNIIb 1325 1
11 SN 1994I SN* 13 29 54.072 +47 11 30.50     12.9     SNIc 596 1
12 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2385 2
13 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 2701 2
14 NAME Rapid Burster LXB 17 33 24.61 -33 23 19.8           ~ 393 2
15 3FHL J1746.2-2852 LXB 17 44 33.09 -28 44 27.0           ~ 511 0
16 SN 1998bw SN* 19 35 03.17 -52 50 46.1   14.09       SNIc 1724 2

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2022.05.20-23:55:46

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