Kuehnel: Created page with "Category:Accreting X-ray Pulsars '''This page is still edited''' = System Overview = {| class="wikitable" |P_orb | 111.1 | days | Finger et al. 2006 |-..."

2018-04-18T12:20:36Z

Created page with "Category:Accreting X-ray Pulsars '''This page is still edited''' = System Overview = {| class="wikitable" |Porb | 111.1 | days | Finger et al. 2006 |-..."

New page

[[Category:Accreting X-ray Pulsars]]

'''This page is still edited'''

= System Overview =

{| class="wikitable"
|Porb
| 111.1
| days
| Finger et al. 2006
|-
|Pspin
| 103.4
| s
| Rosenberg et al. 1975, Makino et al. 1989, ...
|-
|B
| 4x1012
| G
| Kendziorra et al. 1994
|-
|a sin i
| 267
| lt-sec
| Finger et al. 2006
|-
|eccentricity
| 0.47
|
| Finger et al. 2006
|-
|ω
| 130
|degree
| Finger et al. 2006
|-
|Τperiastron
| 53613.0
| MJD
| Finger et al. 2006
|-
|distance
| 2
| kpc
| Steele et al. 1994
|}

= Optical companion =

HDE 245770, spectral class: O9.7IIIe (Giangrande et al. 1980), B0 IIIe (Steele et al. 1998) 

{| class="wikitable"
|M
| 14 / 20 / 26
| M⊙
| de Loore et al. 1984 / Coe et al. 2006 / Haigh et al. 2004
|-
|R
| 14
| R⊙
|de Loore et al. 1984
|-
|Mdot
| 10-8
| M⊙
|de Loore et al. 1984
|-
|Teff
| 26000-28000
| K
| Giovannelli & Graziati 1992
|-
|L
| 0.7 x 105
| L⊙
| Giovannelli & Graziati 1992
|}
= Description =

=== Pulse period and pulse profiles ===

* pulse shape and intensity are highly variable (Frontera et al. 1985)
* lower energies several, irregularly spaced maxima observed (bradt et al. 1976)
* double-peaked pulse profiles above 20 keV
* asymmetric main and more symmetric secondary peak (Kendziorra et al. 1994)
* pulsed fraction increases with energy (Frontera et al. 1985, Kendziorra et al. 1994)

=== Spectrum ===

* hard power law with index 0.8-1.1 with exponential cutoff (Ricketts et al. 1975, Kendziorra et al. 1994)
* 2 cyclotron lines at about 50, 100 keV
* Pulse phase analysis: main pulse spectrum harder than secondary pulse (Kendziorra et al. 1994)

A0535+26 - Revision history

Kuehnel: Created page with "Category:Accreting X-ray Pulsars '''This page is still edited''' = System Overview = {| class="wikitable" |Porb | 111.1 | days | Finger et al. 2006 |-..."

Kuehnel: Created page with "Category:Accreting X-ray Pulsars '''This page is still edited''' = System Overview = {| class="wikitable" |P_orb | 111.1 | days | Finger et al. 2006 |-..."