2006A&A...457L..33H


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.07CET04:40:16

2006A&A...457L..33H - Astronomy and Astrophysics, volume 457, L33-36 (2006/10-3)

Probing the proper motion of the central compact object in Puppis-A with the Chandra high resolution camera.

HUI C.Y. and BECKER W.

Abstract (from CDS):

By making use of the sub-arcsecond angular resolution of the High Resolution Camera (HRC-I) aboard the Chandra X-ray satellite we have examined the central compact object RX J0822-4300 in the supernova remnant Puppis-A for a possible proper motion. Using data which span an epoch of 1952 days we found the position of RX J0822-4300 different by 0.574±0.184arcsec, implying a proper motion of µ=107.49±34.46mas/yr. For a distance of 2.2 kpc, this proper motion is equivalent to a recoil velocity of 1121.79±359.60km/s. The position angle is found to be 241°±24°. Since both the magnitude and direction of the proper motion are in agreement with the birth place of RX J0822-4300 being near to the optical expansion center of the supernova remnant, the result presented in this letter is a promising indication of a fast moving compact object in a supernova remnant. Although the positional shift inferred from the current data is significant at a ∼3σ level only, one or more future HRC-I observations can obtain a much larger positional separation and further constrain the measurement.

Abstract Copyright:

Journal keyword(s): pulsars: individual: RX J0822-4300

Nomenclature: Table 1: [HB2006] A (Nos A-B).

Simbad objects: 21

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Number of rows : 21

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 UCAC2 13302738 * 08 21 46.29 -43 02 03.7           ~ 2 0
2 [HB2006] A X 08 21 46.336 -43 02 03.73           ~ 1 0
3 UCAC2 13302743 PM* 08 21 48.875 -43 01 28.34       12.13   ~ 2 0
4 PSR J0821-4300 Psr 08 21 58.2 -43 00 22           ~ 115 2
5 [HB2006] B X 08 22 23.924 -42 57 59.29           ~ 1 0
6 NAME Pup A SNR 08 24 07 -42 59.8           ~ 531 1
7 NAME Vela Jr SN SNR 08 52.0 -46 20           ~ 420 2
8 2XMM J085201.4-461753 X 08 52 01.4 -46 17 53           ~ 40 1
9 SNR G295.5+09.7 SNR 12 09 40 -52 25.0           ~ 261 1
10 PSR J1210-5226 Psr 12 10 00.88 -52 26 28.4           ~ 207 1
11 AJG 44 Psr 16 17 33.000 -51 02 00.00           ~ 463 3
12 2E 3623 X 16 17 36.30 -51 02 26.6           ~ 91 1
13 SNR G347.3-00.5 SNR 17 12 27 -39 41.2     12.27     ~ 631 1
14 RX J1713.4-3949 X 17 13 28 -39 49.8           ~ 36 0
15 SNR G033.6+00.1 SNR 18 52 29.000 +00 38 42.00           ~ 245 1
16 PSR J1852+0040 Psr 18 52 38.49 +00 40 19.8           ~ 75 1
17 PSR B2011+38 Psr 20 13 10.367 +38 45 43.31           ~ 63 0
18 NAME Cas A SNR 23 23 24.000 +58 48 54.00     14.30     ~ 2476 1
19 CXOU J232327.8+584842 X 23 23 27.85 +58 48 42.8           ~ 22 1
20 PSR B2334+61 Psr 23 37 05.779 +61 51 01.69           ~ 169 1
21 SNR G114.3+00.3 SNR 23 37 05.780 +61 51 01.69           ~ 111 1

    Equat.    Gal    SGal    Ecl

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2021.03.07-04:40:16

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