2013A&A...552A.127D


C.D.S. - SIMBAD4 rel 1.7 - 2020.04.04CEST11:41:42

2013A&A...552A.127D - Astronomy and Astrophysics, volume 552A, 127-127 (2013/4-1)

Deep optical imaging of the γ-ray pulsar J1048-5832 with the VLT.

DANILENKO A., KIRICHENKO A., SOLLERMAN J., SHIBANOV Yu. and ZYUZIN D.

Abstract (from CDS):

PSR J1048-5832 is a young radio-pulsar that has recently been detected in γ-rays with Fermi, and also in X-rays with Chandra and XMM-Newton. It powers a compact pulsar wind nebula visible in X-rays and is in many ways similar to the Vela pulsar. We present deep optical observations made with the ESO Very Large Telescope to search for optical counterparts of the pulsar and its nebula and to explore their multi-wavelength emission properties. The data were obtained in the V and R bands and were compared with archival data in other spectral domains. We do not detect the pulsar in the optical and derive informative upper limits of R>28.1mag and V>28.4mag for its brightness. Using a red-clump star method, we estimate an interstellar extinction towards the pulsar of AV≃2mag, which is consistent with the absorbing column density derived from X-rays. The respective distance agrees with the dispersion measure distance. We reanalysed the Chandra X-ray data and compared the dereddened upper limits with the unabsorbed X-ray spectrum of the pulsar. We find that regarding its optical-X-ray spectral properties this γ-ray pulsar is not distinct from other pulsars detected in both ranges. However, like the Vela pulsar, it is very inefficient in the optical and X-rays. Among a dozen optical sources overlapping with the pulsar X-ray nebula we find one with V≃26.9mag and R≃26.3mag, whose colour is slightly bluer than that of the field stars and is consistent with the peculiar colours typical for pulsar nebula features. It positionally coincides with a relatively bright feature of the pulsar X-ray nebula, resembling the Crab wisp and is located in ∼2" from the pulsar. We suggest this source as a counterpart candidate to the feature. Based on the substantial interstellar extinction towards the pulsar and its optical inefficiency, additional optical studies should be carried out at longer wavelengths.

Abstract Copyright:

Journal keyword(s): stars: neutron - ISM: supernova remnants - pulsars: individual: PSR J1048-5832

VizieR on-line data: <Available at CDS (J/A+A/552/A127): table1.dat list.dat fits/*>

Status at CDS:  

CDS comments: Figure 7 pulsars not identified (incomplete format).

Simbad objects: 13

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Number of rows : 13

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 V* CM Tau Psr 05 34 31.93830 +22 00 52.1758           ~ 4763 1
2 M 1 SNR 05 34 31.94 +22 00 52.2           ~ 5546 4
3 NAME Geminga Psr 06 33 54.153 +17 46 12.91           ~ 1082 0
4 NAME E 3 Region reg 06 48 +44.8           ~ 12 0
5 NGC 2298 GlC 06 48 59.41 -36 00 19.1   10.77 8.89     ~ 415 0
6 NGC 2437 OpC 07 41 46 -14 48.6           ~ 136 0
7 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545           ~ 2038 1
8 NAME E 3 GlC 09 20 57.07 -77 16 54.8           ~ 124 0
9 CXOGNC J104608.71-594306.4 N*? 10 46 08.719 -59 43 06.48           ~ 14 0
10 PSR J1047-58 Psr 10 47 56 -58 41.0           ~ 5 0
11 PSR B1046-58 Psr 10 48 12.391 -58 32 02.68           ~ 226 0
12 PSR J1357-6429 Psr 13 57 02.525 -64 29 29.89           ~ 114 1
13 PG 1525-071 HS* 15 28 11.5771272664 -07 16 32.898620269 13.658 14.85 14.89 15.14 15.197 sdO 35 0

    Equat.    Gal    SGal    Ecl

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2020.04.04-11:41:42

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