The binary companion of PSR J1740-3052

C. G. Bassa; W. F. Brisken; G. Nelemans; I. H. Stairs; B. W. Stappers; M. Kramer

doi:10.1111/j.1745-3933.2010.01006.x

The binary companion of PSR J1740-3052

C. G. Bassa, W. F. Brisken, G. Nelemans, I. H. Stairs, B. W. Stappers, M. Kramer

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

We report on the identification of a near-infrared counterpart to the massive (>11M·) binary companion of pulsar J1740-3052. An accurate celestial position of PSR J1740-3052 is determined from interferometric radio observations. Adaptive optics corrected near-infrared imaging observations show a counterpart at the interferometric position of the pulsar. The counterpart has K_s = 15.87 ± 0.10 and J - K_s > 0.83. Based on distance and absorption estimates from models of the Galactic electron and dust distributions, these observed magnitudes are consistent with those of a main-sequence star as the binary companion. We argue that this counterpart is the binary companion to PSR J1740-3052 and thus rule out a stellar mass black hole as the pulsar companion.

Original language	English (US)
Pages (from-to)	L63-L67
Journal	Monthly Notices of the Royal Astronomical Society: Letters
Volume	412
Issue number	1
DOIs	https://doi.org/10.1111/j.1745-3933.2010.01006.x
State	Published - Mar 2011

Keywords

Astrometry
Binaries: general
Infrared: stars
Pulsars: general
Pulsars: individual: PSR J1740-3052
Stars: early-type

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10.1111/j.1745-3933.2010.01006.x

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title = "The binary companion of PSR J1740-3052",

abstract = "We report on the identification of a near-infrared counterpart to the massive (>11M·) binary companion of pulsar J1740-3052. An accurate celestial position of PSR J1740-3052 is determined from interferometric radio observations. Adaptive optics corrected near-infrared imaging observations show a counterpart at the interferometric position of the pulsar. The counterpart has Ks = 15.87 ± 0.10 and J - Ks > 0.83. Based on distance and absorption estimates from models of the Galactic electron and dust distributions, these observed magnitudes are consistent with those of a main-sequence star as the binary companion. We argue that this counterpart is the binary companion to PSR J1740-3052 and thus rule out a stellar mass black hole as the pulsar companion.",

keywords = "Astrometry, Binaries: general, Infrared: stars, Pulsars: general, Pulsars: individual: PSR J1740-3052, Stars: early-type",

author = "Bassa, \{C. G.\} and Brisken, \{W. F.\} and G. Nelemans and Stairs, \{I. H.\} and Stappers, \{B. W.\} and M. Kramer",

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doi = "10.1111/j.1745-3933.2010.01006.x",

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T1 - The binary companion of PSR J1740-3052

AU - Bassa, C. G.

AU - Brisken, W. F.

AU - Nelemans, G.

AU - Stairs, I. H.

AU - Stappers, B. W.

AU - Kramer, M.

PY - 2011/3

Y1 - 2011/3

N2 - We report on the identification of a near-infrared counterpart to the massive (>11M·) binary companion of pulsar J1740-3052. An accurate celestial position of PSR J1740-3052 is determined from interferometric radio observations. Adaptive optics corrected near-infrared imaging observations show a counterpart at the interferometric position of the pulsar. The counterpart has Ks = 15.87 ± 0.10 and J - Ks > 0.83. Based on distance and absorption estimates from models of the Galactic electron and dust distributions, these observed magnitudes are consistent with those of a main-sequence star as the binary companion. We argue that this counterpart is the binary companion to PSR J1740-3052 and thus rule out a stellar mass black hole as the pulsar companion.

AB - We report on the identification of a near-infrared counterpart to the massive (>11M·) binary companion of pulsar J1740-3052. An accurate celestial position of PSR J1740-3052 is determined from interferometric radio observations. Adaptive optics corrected near-infrared imaging observations show a counterpart at the interferometric position of the pulsar. The counterpart has Ks = 15.87 ± 0.10 and J - Ks > 0.83. Based on distance and absorption estimates from models of the Galactic electron and dust distributions, these observed magnitudes are consistent with those of a main-sequence star as the binary companion. We argue that this counterpart is the binary companion to PSR J1740-3052 and thus rule out a stellar mass black hole as the pulsar companion.

KW - Astrometry

KW - Binaries: general

KW - Infrared: stars

KW - Pulsars: general

KW - Pulsars: individual: PSR J1740-3052

KW - Stars: early-type

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JF - Monthly Notices of the Royal Astronomical Society: Letters

IS - 1

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The binary companion of PSR J1740-3052

Abstract

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