The Fermi Gamma Ray Space Telescope discovers the Pulsar in the Young Galactic Supernova-Remnant CTA 1

Energetic young pulsars and expanding blast waves (supernova remnants, SNRs) are the most visible remains after massive stars, ending their lives, explode in core-collapse supernovae. The Fermi Gamma-Ray Space Telescope has unveiled a radio quiet pulsar located near the center of the compact synchrotron nebula inside the supernova remnant CTA 1. The pulsar, discovered through its gamma-ray pulsations, has a period of 316.86 ms, a period derivative of 3.614 x 10-13 s s-1 . Its characteristic age of 104 years is comparable to that estimated for the SNR. It is conjectured that most unidentified Galactic gamma ray sources associated with star-forming regions and SNRs are such young pulsars.

Note:

18 pages, 3 figures + supplemental material, published in Science Express, October 16, 2008 Contact authors: G. Kanbach, K. Wood, M. Ziegler

References(31)

Figures(0)

[1]

D.E. Harris
,
J.A. Roberts

- Publ.Astron.Soc.Pac. 72 237

[2]

D.E. Harris

- Astrophys.J. 135 661

[3]

J.L. Caswell

- Mon.Not.Roy.Astron.Soc. 136 11

[4]

W. Sieber
,
C.G.T. Haslam
,
C.J. Salter

- Astron.Astrophys. 74 361

[5]

W. Sieber
,
C.J. Salter
,
C.J. Mayer

- Astron.Astrophys. 103 393

[6]

S. Pineault

- Astron.J. 105 1060

[7]

S., et al

S. Pineault

- Astron.Astrophys. 324 1152

[8]

F. Mavromatakis

- Astron.Astrophys. 353 371

[9]

F.D. Seward
,
B. Schmidt
,
P. Slane

- Astrophys.J. 453 284

[10]

P. Slane

- Astrophys.J. 485 221

[11]

X-ray observations of the compact source in CTA 1

et al.

- Astrophys.J. 601 (2004) 1045-1049
•
e-Print:
- astro-ph/0310250
•
DOI:
- 10.1086/380498

[12]

X-ray, radio, and optical observations of the putative pulsar in the supernova remnant CTA 1

- Astrophys.J. 612 (2004) 398-407
•
e-Print:
- astro-ph/0404312
•
DOI:
- 10.1086/422409

[13]

The Third EGRET catalog of high-energy gamma-ray sources

EGRET

Collaboration

•

R.C. Hartman

et al.

- Astrophys.J.Suppl. 123 (1999) 79
•
DOI:
- 10.1086/313231

[14]

A candidate gamma-ray pulsar in the supernova remnant cta 1

- Mon.Not.Roy.Astron.Soc. 295 (1998) 819
•
e-Print:
- astro-ph/9710111
•
DOI:
- 10.1046/j.1365-8711.1998.01263.x

[15]

S.J. Sturner
,
C.D. Dermer
,
J. Mattox

- Astron.Astrophys.Suppl.Ser. 120 445

[16]

The Large Area Telescope

GLAST LAT

Collaboration

•

Peter F. Michelson
(
- KIPAC, Menlo Park and
- Stanford U., HEPL
)

for the collaboration.

- AIP Conf.Proc. 921 (2007) 1, 8-12
•
DOI:
- 10.1063/1.2757256

[17]

A Time-differencing technique for detecting radio-quiet gamma-ray pulsars

- Astrophys.J.Lett. 652 (2006) L49-L52
•
DOI:
- 10.1086/510018

[18]

PhD thesis, Harvard University (2001), available at

S.M. Ransom

- http://www.cv.nrao.edu/~sransom/presto/

[19]

Astron. Soc. : 369 (2006) 655

G.B. Hobbs
,
R.T. Edwards
,
R.N. Manchester
,
Not. R.

[20]

A Statistical study of 233 pulsar proper motions

George Hobbs
(
- Australia, CSIRO, Epping and
- Jodrell Bank
)
,
D.R. Lorimer
(
- Jodrell Bank
)
,
A.G. Lyne
(
- Jodrell Bank
)
,
M. Kramer
(
- Jodrell Bank
)

- Mon.Not.Roy.Astron.Soc. 360 (2005) 974-992
•
e-Print:
- astro-ph/0504584
•
DOI:
- 10.1111/j.1365-2966.2005.09087.x

[21]

D.J. Thompson

- Astrophys.J. 465 385

[22]

extrapolation of the present pulsar ephemeris back to the archival epochs results in a large range of uncertainty for the period. Searches in XMM data by members of the Fermi LAT collaboration are not yet conclusive

[23]

Rotating neutron stars and the nature of pulsars

Thomas Gold
(
- Cornell U., Astron. Dept.
)

- Nature 221 (1969) 25-27
•
DOI:
- 10.1038/221025a0

[24]

High Energy Emission from Rotation-Powered Pulsars: Outer-gap vs. Slot-gap Models

Kouichi Hirotani

e-Print:
- 0809.1283

[25]

High-Altitude Emission from Pulsar Slot Gaps: The Crab Pulsar

- Astrophys.J. 680 (2008) 1378
•
e-Print:
- 0803.0699
•
DOI:
- 10.1086/588037

1-25 of 31
1
2
25 / page