Anomalous X-ray pulsars: Persistent states with fallback disks

Ü Ertan; M. A. Alpar; M. H. Erkut; K. Y. Ekşi; Ş Çalişkan

doi:10.1007/s10509-007-9328-8

Anomalous X-ray pulsars: Persistent states with fallback disks

Ü Ertan^*
, M. A. Alpar
, M. H. Erkut
, K. Y. Ekşi
, Ş Çalişkan

^*Bu çalışma için yazışmadan sorumlu yazar

Fizik Mühendisliği Bölümü

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

13 Atıf (Scopus)

Özet

The anomalous X-ray pulsar 4U 0142+61 was recently detected in the mid infrared bands with the SPITZER Observatory (Wang, Chakrabarty and Kaplan: Nature 440, 772 (2006)). This observation is the first instance for a disk around an AXP. From a reanalysis of optical and infrared data, we show that the observations indicate that the disk is likely to be an active disk rather than a passive dust disk beyond the light cylinder, as proposed in the discovering paper. Furthermore, we show that the irradiated accretion disk model can also account for all the optical and infrared observations of the anomalous X-ray pulsars in the persistent state.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	73-77
Sayfa sayısı	5
Dergi	Astrophysics and Space Science
Hacim	308
Basın numarası	1-4
DOI'lar	https://doi.org/10.1007/s10509-007-9328-8
Yayın durumu	Yayınlandı - Nis 2007

Finansman

We acknowledge support from the Astrophysics and Space Forum at Sabancı University. S.Ç. acknowledges support from the FP6 Marie Curie Reintegration Grant, INDAM.

Finansörler
Sabancı University
Istituto Nazionale di Alta Matematica "Francesco Severi"
Sixth Framework Programme

Belgeye Erişim

10.1007/s10509-007-9328-8

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Anomalous X-ray pulsars: Persistent states with fallback disks",

abstract = "The anomalous X-ray pulsar 4U 0142+61 was recently detected in the mid infrared bands with the SPITZER Observatory (Wang, Chakrabarty and Kaplan: Nature 440, 772 (2006)). This observation is the first instance for a disk around an AXP. From a reanalysis of optical and infrared data, we show that the observations indicate that the disk is likely to be an active disk rather than a passive dust disk beyond the light cylinder, as proposed in the discovering paper. Furthermore, we show that the irradiated accretion disk model can also account for all the optical and infrared observations of the anomalous X-ray pulsars in the persistent state.",

keywords = "Accretion and accretion disks, Neutron stars, Pulsars",

author = "{\"U} Ertan and Alpar, \{M. A.\} and Erkut, \{M. H.\} and Ek{\c s}i, \{K. Y.\} and {\c S} {\c C}ali{\c s}kan",

year = "2007",

month = apr,

doi = "10.1007/s10509-007-9328-8",

language = "English",

volume = "308",

pages = "73--77",

journal = "Astrophysics and Space Science",

issn = "0004-640X",

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TY - JOUR

T1 - Anomalous X-ray pulsars

T2 - Persistent states with fallback disks

AU - Ertan, Ü

AU - Alpar, M. A.

AU - Erkut, M. H.

AU - Ekşi, K. Y.

AU - Çalişkan, Ş

PY - 2007/4

Y1 - 2007/4

N2 - The anomalous X-ray pulsar 4U 0142+61 was recently detected in the mid infrared bands with the SPITZER Observatory (Wang, Chakrabarty and Kaplan: Nature 440, 772 (2006)). This observation is the first instance for a disk around an AXP. From a reanalysis of optical and infrared data, we show that the observations indicate that the disk is likely to be an active disk rather than a passive dust disk beyond the light cylinder, as proposed in the discovering paper. Furthermore, we show that the irradiated accretion disk model can also account for all the optical and infrared observations of the anomalous X-ray pulsars in the persistent state.

AB - The anomalous X-ray pulsar 4U 0142+61 was recently detected in the mid infrared bands with the SPITZER Observatory (Wang, Chakrabarty and Kaplan: Nature 440, 772 (2006)). This observation is the first instance for a disk around an AXP. From a reanalysis of optical and infrared data, we show that the observations indicate that the disk is likely to be an active disk rather than a passive dust disk beyond the light cylinder, as proposed in the discovering paper. Furthermore, we show that the irradiated accretion disk model can also account for all the optical and infrared observations of the anomalous X-ray pulsars in the persistent state.

KW - Accretion and accretion disks

KW - Neutron stars

KW - Pulsars

UR - https://www.scopus.com/pages/publications/34248202565

U2 - 10.1007/s10509-007-9328-8

DO - 10.1007/s10509-007-9328-8

M3 - Article

AN - SCOPUS:34248202565

SN - 0004-640X

VL - 308

SP - 73

EP - 77

JO - Astrophysics and Space Science

JF - Astrophysics and Space Science

IS - 1-4

ER -

Anomalous X-ray pulsars: Persistent states with fallback disks

Özet

Finansman

Belgeye Erişim

Diğer Dosyalar ve Linkler

Parmak izi

Alıntı Yap