2006ApJ...636..848F


Query : 2006ApJ...636..848F

2006ApJ...636..848F - Astrophys. J., 636, 848-858 (2006/January-2)

Near-infrared and optical limits for the central X-ray point source in the Cassiopeia A supernova remnant.

FESEN R.A., PAVLOV G.G. and SANWAL D.

Abstract (from CDS):

We set new near-infrared and optical magnitude limits for the central X-ray point source (XPS) in the Cassiopeia A supernova remnant based on HST images. Near-infrared images of the center of Cas A taken with the NICMOS 2 camera in combination with the F110W and F160W filters (~J and H bands) have magnitude limits ≥26.2 and ≥24.6, respectively. These images reveal no sources within a 1".2 radius (corresponding to a 99% confidence limit) of the Chandra XPS position. The NICMOS data, taken together with broadband optical magnitude limits (R∼28 mag) obtained from a deep STIS CCD exposure taken with a clear filter (50CCD), indicate that the XPS luminosities are very low in the optical/NIR bands (e.g., LH<3x1029 ergs/s) with no optical, J-, or H-band counterpart to the XPS easily detectable by HST. The closest detected object lies 1".8 from the XPS's nominal coordinates, with magnitudes R=25.7, mF110W=21.9, and mF160W=20.6, and is a foreground, late-type star as suggested by Kaplan, Kulkarni, and Murray. We discuss the nature of the Cas A central compact object on the basis of these near-infrared and optical flux limits.

Abstract Copyright:

Journal keyword(s): ISM: Individual: Name: Cassiopeia A - Stars: Neutron - ISM: Supernova Remnants - X-Rays: Stars

Nomenclature: Table 3: [FPS2006b] JHHMMSS.ss+DDMMSS.s N=3. Table 4, Fig.2: [FPS2006b] Star A (Nos A-B), [FPS2006b] Star N (Nos 1-2).

CDS comments: Table 3: "MDM NNNN" id not used in SIMBAD internal Michigan Darthmouth MIT id), but [ FPS2006b] with coordinates.

Simbad objects: 43

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Number of rows : 43
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9859 1
2 PSR J0100-7211 Psr 01 00 42.86 -72 11 33.3   17.69 17.82     B3V 88 0
3 SNR B0102-72.3 SNR 01 04 01.2 -72 01 52           ~ 356 1
4 SNR B0103-72.6 SNR 01 05 05.6 -72 23 20           ~ 75 1
5 PSR J0146+6145 Psr 01 46 22.21 +61 45 03.8   28.100 25.620     ~ 523 0
6 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15467 1
7 PSR B0540-69 Psr 05 40 10.84 -69 19 54.2           ~ 815 3
8 PSR B0656+14 Psr 06 59 48.1960 +14 14 19.400   24.85 24.90     ~ 785 1
9 PSR J0821-4300 Psr 08 21 58.2 -43 00 22           ~ 118 2
10 NAME Pup A SNR 08 24 07 -42 59.8           ~ 538 1
11 NAME Vela XYZ Rad 08 34.0 -45 50           ~ 1144 2
12 NAME Vela Jr SN SNR 08 52.0 -46 20           ~ 425 2
13 2XMM J085201.4-461753 X 08 52 01.4 -46 17 53           ~ 40 1
14 2E 2336 HXB 10 50 08.93 -59 53 19.9           Be 386 0
15 SNR G292.0+01.8 SNR 11 24 59 -59 19.1           ~ 299 1
16 SNR G295.5+09.7 SNR 12 09 40 -52 25.0           ~ 265 1
17 PSR J1210-5226 Psr 12 10 00.88 -52 26 28.4           ~ 213 1
18 PSR J1708-4008 Psr 17 08 49.0 -40 09 10           ~ 270 0
19 SNR G347.3-00.5 SNR 17 12 27 -39 41.2     12.27     ~ 642 1
20 RX J1713.4-3949 X 17 13 28 -39 49.8           ~ 36 0
21 AX J1809.8-1943 Psr 18 09 51.07 -19 43 51.8           ~ 390 0
22 PSR J1841-0456 Psr 18 41 19.29 -04 56 11.4           ~ 242 1
23 4C -04.71 Rad 18 41 19.8 -04 56 06           ~ 309 3
24 SNR G033.6+00.1 SNR 18 52 29.000 +00 38 42.00           ~ 252 1
25 PSR J1852+0040 Psr 18 52 38.49 +00 40 19.8           ~ 78 1
26 2E 4673 HXB 23 01 08.14 +58 52 44.5           ~ 599 1
27 SNR G109.1-01.0 SNR 23 01 35 +58 53.0           ~ 326 0
28 USNO-A2.0 1425-15007635 * 23 22 51.6351815253 +58 50 19.787288739   16.5       ~ 1 0
29 USNO-A2.0 1425-15012096 * 23 23 03.8322310542 +58 49 18.103873782   16.3       ~ 1 0
30 USNO-A2.0 1425-15012463 * 23 23 04.7886301982 +58 48 00.045680377   15.3       ~ 1 0
31 TYC 4011-1069-1 * 23 23 22.7124003040 +58 52 49.847894819   12.12 11.75     ~ 1 0
32 NAME Cas A SNR 23 23 24.000 +58 48 54.00     14.30     ~ 2514 1
33 2MASS J23232629+5853108 * 23 23 26.29 +58 53 10.8   20.2       ~ 1 0
34 [FPS2006b] Star 1 * 23 23 27.170 +58 48 40.25       22.9   ~ 2 0
35 [FPS2006b] Star 2 * 23 23 27.215 +58 48 46.84       24.7   ~ 2 0
36 [FPS2006b] Star A * 23 23 27.78 +58 48 41.2           ~ 3 0
37 CXOU J232327.8+584842 X 23 23 27.85 +58 48 42.8           ~ 22 1
38 [FPS2006b] Star B * 23 23 27.938 +58 48 40.59           ~ 1 0
39 [FPS2006b] Star C * 23 23 28.075 +58 48 45.92           ~ 1 0
40 2MASS J23234173+5852274 * 23 23 41.7398029088 +58 52 27.318178156       19.5   ~ 1 0
41 2MASS J23234323+5852238 * 23 23 43.2347819026 +58 52 23.797065082       12.8   ~ 1 0
42 USNO-A2.0 1425-15027102 * 23 23 45.7943915889 +58 50 48.472304122   14.3       ~ 1 0
43 2MASS J23235714+5848119 * 23 23 57.15 +58 48 12.0       21.2   ~ 1 0

    Equat.    Gal    SGal    Ecl

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2021.07.30-17:26:56

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