Semantic Scholar Open Access 2009 120 sitasi

FERMI/LAT OBSERVATIONS OF LS 5039

A. Abdo M. Ackermann M. Ajello W. Atwood M. Axelsson +182 lainnya

Lihat Sumber DOI

Abstrak

The first results from observations of the high-mass X-ray binary LS 5039 using the Fermi Gamma-ray Space Telescope data between 2008 August and 2009 June are presented. Our results indicate variability that is consistent with the binary period, with the emission being modulated with a period of 3.903 ± 0.005 days; the first detection of this modulation at GeV energies. The light curve is characterized by a broad peak around superior conjunction in agreement with inverse Compton scattering models. The spectrum is represented by a power law with an exponential cutoff, yielding an overall flux (100 MeV–300 GeV) of 4.9 ± 0.5(stat) ± 1.8(syst) ×10−7 photon cm−2 s−1, with a cutoff at 2.1 ± 0.3(stat) ± 1.1(syst) GeV and photon index Γ = 1.9 ± 0.1(stat) ± 0.3(syst). The spectrum is observed to vary with orbital phase, specifically between inferior and superior conjunction. We suggest that the presence of a cutoff in the spectrum may be indicative of magnetospheric emission similar to the emission seen in many pulsars by Fermi.

Topik & Kata Kunci

Physics

Penulis (187)

A. Abdo

M. Ackermann

M. Ajello

W. Atwood

M. Axelsson

L. Baldini

J. Ballet

G. Barbiellini

D. Bastieri

B. Baughman

K. Bechtol

R. Bellazzini

B. Berenji

R. Blandford

E. Bloom

E. Bonamente

A. Borgland

J. Bregeon

A. Brez

M. Brigida

P. Bruel

T. Burnett

S. Buson

G. Caliandro

R. Cameron

P. Caraveo

J. Casandjian

E. Cavazzuti

C. Cecchi

O. Celik

S. Chaty

A. Chekhtman

C. Cheung

J. Chiang

S. Ciprini

R. Claus

J. Cohen-Tanugi

L. Cominsky

J. Conrad

S. Corbel

R. Corbet

S. Cutini

C. Dermer

A. Angelis

F. Palma

S. Digel

E. Silva

P. Drell

R. Dubois

G. Dubus

D. Dumora

C. Farnier

C. Favuzzi

S. Fegan

W. Focke

P. Fortin

M. Frailis

Y. Fukazawa

S. Funk

P. Fusco

F. Gargano

D. Gasparrini

N. Gehrels

S. Germani

B. Giebels

N. Giglietto

F. Giordano

T. Glanzman

G. Godfrey

I. Grenier

M. Grondin

J. Grove

L. Guillemot

S. Guiriec

Y. Hanabata

A. Harding

M. Hayashida

E. Hays

A. Hill

D. Horan

R. Hughes

M. Jackson

G. Jóhannesson

A. Johnson

T. Johnson

W. Johnson

T. Kamae

H. Katagiri

J. Kataoka

N. Kawai

M. Kerr

J. Knödlseder

M. Kocian

F. Kuehn

M. Kuss

J. Lande

S. Larsson

L. Latronico

M. Lemoine-Goumard

F. Longo

F. Loparco

B. Lott

M. Lovellette

P. Lubrano

G. Madejski

A. Makeev

M. Marelli

M. Mazziotta

J. Mcenery

C. Meurer

P. Michelson

W. Mitthumsiri

T. Mizuno

A. Moiseev

C. Monte

M. Monzani

A. Morselli

I. Moskalenko

S. Murgia

P. Nolan

J. Norris

É. Nuss

T. Ohsugi

N. Omodei

E. Orlando

J. Ormes

M. Ozaki

D. Paneque

J. Panetta

D. Parent

V. Pelassa

M. Pepe

M. Pesce-Rollins

F. Piron

T. Porter

S. Rainò

R. Rando

P. Ray

M. Razzano

N. Rea

A. Reimer

O. Reimer

T. Reposeur

S. Ritz

L. Rochester

A. Rodríguez

R. Romani

M. Roth

F. Ryde

H. Sadrozinski

D. Sanchez

A. Sander

P. Parkinson

J. Scargle

C. Sgro’

A. Sierpowska-Bartosik

E. Siskind

D. Smith

P. Smith

G. Spandre

P. Spinelli

M. Strickman

D. Suson

H. Tajima

H. Takahashi

Tadayuki Takahashi

Takaaki Tanaka

Yasuyuki T. Tanaka

J. Thayer

D. Thompson

L. Tibaldo

D. Torres

G. Tosti

A. Tramacere

Y. Uchiyama

T. Usher

V. Vasileiou

C. Venter

N. Vilchez

V. Vitale

A. Waite

E. Wallace

Pengfei Wang

B. Winer

K. Wood

T. Ylinen

M. Ziegler

Format Sitasi

APA MLA BibTeX

Abdo, A., Ackermann, M., Ajello, M., Atwood, W., Axelsson, M., Baldini, L. et al. (2009). FERMI/LAT OBSERVATIONS OF LS 5039. https://doi.org/10.1088/0004-637X/706/1/L56

@article{abdo2009, author = {A. Abdo and M. Ackermann and M. Ajello and W. Atwood and M. Axelsson and L. Baldini and J. Ballet and G. Barbiellini and D. Bastieri and B. Baughman and K. Bechtol and R. Bellazzini and B. Berenji and R. Blandford and E. Bloom and E. Bonamente and A. Borgland and J. Bregeon and A. Brez and M. Brigida and P. Bruel and T. Burnett and S. Buson and G. Caliandro and R. Cameron and P. Caraveo and J. Casandjian and E. Cavazzuti and C. Cecchi and O. Celik and S. Chaty and A. Chekhtman and C. Cheung and J. Chiang and S. Ciprini and R. Claus and J. Cohen-Tanugi and L. Cominsky and J. Conrad and S. Corbel and R. Corbet and S. Cutini and C. Dermer and A. Angelis and F. Palma and S. Digel and E. Silva and P. Drell and R. Dubois and G. Dubus and D. Dumora and C. Farnier and C. Favuzzi and S. Fegan and W. Focke and P. Fortin and M. Frailis and Y. Fukazawa and S. Funk and P. Fusco and F. Gargano and D. Gasparrini and N. Gehrels and S. Germani and B. Giebels and N. Giglietto and F. Giordano and T. Glanzman and G. Godfrey and I. Grenier and M. Grondin and J. Grove and L. Guillemot and S. Guiriec and Y. Hanabata and A. Harding and M. Hayashida and E. Hays and A. Hill and D. Horan and R. Hughes and M. Jackson and G. Jóhannesson and A. Johnson and T. Johnson and W. Johnson and T. Kamae and H. Katagiri and J. Kataoka and N. Kawai and M. Kerr and J. Knödlseder and M. Kocian and F. Kuehn and M. Kuss and J. Lande and S. Larsson and L. Latronico and M. Lemoine-Goumard and F. Longo and F. Loparco and B. Lott and M. Lovellette and P. Lubrano and G. Madejski and A. Makeev and M. Marelli and M. Mazziotta and J. Mcenery and C. Meurer and P. Michelson and W. Mitthumsiri and T. Mizuno and A. Moiseev and C. Monte and M. Monzani and A. Morselli and I. Moskalenko and S. Murgia and P. Nolan and J. Norris and É. Nuss and T. Ohsugi and N. Omodei and E. Orlando and J. Ormes and M. Ozaki and D. Paneque and J. Panetta and D. Parent and V. Pelassa and M. Pepe and M. Pesce-Rollins and F. Piron and T. Porter and S. Rainò and R. Rando and P. Ray and M. Razzano and N. Rea and A. Reimer and O. Reimer and T. Reposeur and S. Ritz and L. Rochester and A. Rodríguez and R. Romani and M. Roth and F. Ryde and H. Sadrozinski and D. Sanchez and A. Sander and P. Parkinson and J. Scargle and C. Sgro’ and A. Sierpowska-Bartosik and E. Siskind and D. Smith and P. Smith and G. Spandre and P. Spinelli and M. Strickman and D. Suson and H. Tajima and H. Takahashi and Tadayuki Takahashi and Takaaki Tanaka and Yasuyuki T. Tanaka and J. Thayer and D. Thompson and L. Tibaldo and D. Torres and G. Tosti and A. Tramacere and Y. Uchiyama and T. Usher and V. Vasileiou and C. Venter and N. Vilchez and V. Vitale and A. Waite and E. Wallace and Pengfei Wang and B. Winer and K. Wood and T. Ylinen and M. Ziegler}, title = {FERMI/LAT OBSERVATIONS OF LS 5039}, year = {2009}, journal = {Semantic Scholar}, doi = {10.1088/0004-637X/706/1/L56}, url = {https://www.semanticscholar.org/paper/22ab5f0d9eb9917cc0f70d1b605e10fb035de48c}, }

Akses Cepat

Lihat di Sumber doi.org/10.1088/0004-637X/706/1/L56

Informasi Jurnal

Tahun Terbit: 2009
Bahasa: en
Total Sitasi: 120×
Sumber Database: Semantic Scholar
DOI: 10.1088/0004-637X/706/1/L56
Akses: Open Access ✓