Is the 5-kpc galactic arm a colony of X-ray pulsars?

Koyama, K.; Kawada, Manabu; Kunieda, H.; Tawara, Yuzuru; Takeuchi, Yoko; Yamauchi, Shigeo

doi:10.1038/343148a0

Cited by 46 publications

(61 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…• In good agreement with theoretical expectations and earlier results (van Paradijs & White 1995;White & van Paradijs 1996;Koyama et al 1990; Nagase 1989) we found significant differences in the spatial (3-D) distribution of high and low mass X-ray binaries. HMXBs are more concentrated towards the Galactic Plane with a vertical scale height of 150 pc, tend to avoid the Galactic Bulge and central ∼ 3 − 4 kpc of the Galaxy and show clear signatures of the spiral structure.…”

Section: Analytical Treatmentsupporting

confidence: 91%

“…References for the distances: (1) -Predehl et al (2000), (2) - Krzeminski (1974), (3) - Hutchings et al (1979), (4) - Motch et al (1997), (5) - Bahcall (1978), (6) - Massey et al (1995), (7) - Chakrabarty et al (1993), (8) - Orosz et al (2000), (9) - Kaper et al (1995), (10) - Corbet et al (1999), (11) - Reynolds et al (1992), (12) (2000), (14) -van Paradijs & White (1995) mass of the Galaxy of about 5 · 10 10 M . The contribution of Be X-ray binaries from the ASM sample to the integrated luminosity of HMXBs is ∼ 5%.…”

Section: Total X-ray Luminosity Of Galactic X-ray Binariesmentioning

confidence: 99%

See 1 more Smart Citation

X-ray Binaries in the Milky Way and Other Galaxies

Grimm

Gilfanov

Sunyaev

2003

Chin. J. Astron. Astrophys.

View full text Add to dashboard Cite

Section: Analytical Treatmentsupporting

confidence: 91%

Section: Total X-ray Luminosity Of Galactic X-ray Binariesmentioning

confidence: 99%

X-ray Binaries in the Milky Way and Other Galaxies

Grimm

Gilfanov

Sunyaev

2003

Chin. J. Astron. Astrophys.

View full text Add to dashboard Cite

“…Such evolutionary signatures had been already noticed by Ginga (Koyama et al, 1990) and RXTE (Grimm et al, 2002) but on smaller samples. However we point out that the exposure map is heterogeneous.…”

Section: The Galactic Spatial Distributionsupporting

confidence: 71%

Multi-wavelength observations revealing the most obscured high energy sources

Chaty¹

2009

Proceedings of 7th INTEGRAL Workshop — PoS(Integral08)

View full text Add to dashboard Cite

A new type of high-energy binary system has been revealed by the INTEGRAL satellite. These sources are being unveiled by means of multi-wavelength optical, near-and mid-infrared observations. Among these sources, two distinct classes are appearing: the first one is constituted of intrinsically obscured high-energy sources, of which IGR J16318-4848 seems to be the most extreme example. The second one is populated by the so-called supergiant fast X-ray transients, with IGR J17544-2619 being the archetype. We first give here a general introduction on INTE-GRAL sources, before reporting on multi-wavelength optical to mid-infrared observations of a sample constituted of 21 INTEGRAL sources. We show that in the case of the obscured sources our observations suggest the presence of absorbing material (dust and/or cold gas) enshrouding the whole binary system. We finally discuss the nature of these two different types of sources, in the context of high energy binary systems, and give a scenario of unification of all these different types of high energy sources, based on their high energy properties. 7th INTEGRAL Workshop

show abstract

“…A recent study of INTEGRAL observed HMXBs by Lutovinov et al (2005b) arrives at a similar conclusion. This association had been previously noted through inspection of the Ginga data by Koyama et al (1990) and in the RXTE/ASM data by Grimm et al (2002).…”

Section: The Angular Distributionssupporting

confidence: 66%

Global characteristics of the first IBIS/ISGRI catalogue sources: unveiling a murky episode of binary star evolution

Dean

Bazzano

Hill

et al. 2005

A&A

View full text Add to dashboard Cite

INTEGRAL is the first gamma-ray astronomy mission with a sufficient sensitivity and angular resolution combination appropriate to the detection and identification of considerable numbers of gamma-ray emitting sources. The large field of view (∼30• zero response FWHM) enables INTEGRAL to survey the galactic plane on a regular (∼weekly) basis as part of the core programme. The first source catalogue, based on the 1st year of core programme data (∼5 Ms) has been completed and published (Bird et al. 2004, ApJ, 607, L33). It contained 123 γ-ray sources (24 HMXB, 54 LMXB, 28 "unknown", plus 17 others) -sufficient numbers for a reasonable statistical analysis of their global properties. These were located to a positional accuracy of typically 0.72 arcmin. The detection of previously unknown γ-ray emitting sources generally exhibiting high intrinsic absorption, which do not have readily identifiable counterparts at other wavelengths, is intriguing. The substantial fraction (roughly 20% of the total number) of unclassified γ-ray sources suggests they must constitute a significant family of objects. In this paper we review the global characteristics of the known galactic sources as well as the unclassified objects with the twin aims of investigating how the unclassified set may fit into stellar evolution and improving our understanding of known X-ray binary systems through the non-thermal γ-ray channel. In the context of the known systems we are very conscious that they constitute a γ-ray selected set, and may exhibit subtle generic differences to the rest of the class. We present Log(N)-Log(S ) distributions, angular distributions, and for systems with reliable distance estimates the spatial distributions within the Galaxy and luminosity functions. For the unknown sources, this statistical analysis has shown that they are most likely to be HMXBs containing a highly magnetised neutron star. The lack of X-ray counterparts for these sources indicates a high degree of intrinsic obscuration.

show abstract

Is the 5-kpc galactic arm a colony of X-ray pulsars?

Cited by 46 publications

References 2 publications

X-ray Binaries in the Milky Way and Other Galaxies

X-ray Binaries in the Milky Way and Other Galaxies

Multi-wavelength observations revealing the most obscured high energy sources

Global characteristics of the first IBIS/ISGRI catalogue sources: unveiling a murky episode of binary star evolution

Contact Info

Product

Resources

About