2015ApJ...800...61A

Query : 2015ApJ...800...61A

2015ApJ...800...61A - Astrophys. J., 800, 61 (2015/February-2)

A search for pulsations from Geminga above 100 GeV with VERITAS.

ALIU E., ARCHAMBAULT S., ARCHER A., AUNE T., BARNACKA A., BEILICKE M., BENBOW W., BIRD R., BUCKLEY J.H., BUGAEV V., BYRUM K., CARDENZANA J.V., CERRUTI M., CHEN X., CIUPIK L., CONNOLLY M.P., CUI W., DICKINSON H.J., DUMM J., EISCH J.D., ERRANDO M., FALCONE A., FENG Q., FINLEY J.P., FLEISCHHACK H., FORTIN P., FORTSON L., FURNISS A., GILLANDERS G.H., GRIFFIN S., GRIFFITHS S.T., GRUBE J., GYUK G., HAKANSSON N., HANNA D., HOLDER J., HUMENSKY T.B., JOHNSON C.A., KAARET P., KAR P., KERTZMAN M., KIEDA D., KRENNRICH F., KUMAR S., LANG M.J., LYUTIKOV M., MADHAVAN A.S., MAIER G., McARTHUR S., McCANN A., MEAGHER K., MILLIS J., MORIARTY P., MUKHERJEE R., NIETO D., O'FAOLAIN DE BHROITHE A., ONG R.A., OTTE A.N., PARK N., POHL M., POPKOW A., PROKOPH H., PUESCHEL E., QUINN J., RAGAN K., REYES L.C., REYNOLDS P.T., RICHARDS G.T., ROACHE E., SANTANDER M., SEMBROSKI G.H., SHAHINYAN K., SMITH A.W., STASZAK D., TELEZHINSKY I., TUCCI J.V., TYLER J., VARLOTTA A., VINCENT S., WAKELY S.P., WEINSTEIN A., WILLIAMS D.A., ZAJCZYK A. and ZITZER B.

Abstract (from CDS):

We present the results of 71.6 hr of observations of the Geminga pulsar (PSR J0633+1746) with the VERITAS very-high-energy gamma-ray telescope array. Data taken with VERITAS between 2007 November and 2013 February were phase-folded using a Geminga pulsar timing solution derived from data recorded by the XMM- Newton and Fermi-LAT space telescopes. No significant pulsed emission above 100 GeV is observed, and we report upper limits at the 95% confidence level on the integral flux above 135 GeV (spectral analysis threshold) of 4.0x10^–13/s/cm2 and 1.7x10^–13/s/cm2 for the two principal peaks in the emission profile. These upper limits, placed in context with phase-resolved spectral energy distributions determined from 5 yr of data from the Fermi-Large Area Telescope (LAT), constrain possible hardening of the Geminga pulsar emission spectra above ∼50 GeV.

Abstract Copyright: ∼

Journal keyword(s): gamma rays: stars - pulsars: general - pulsars: individual: (PSR J0633+1746, Geminga)

Simbad objects: 5

Full paper

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Number of rows : 5

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Sp type	#ref 1850 - 2026	#notes
1	M 1	SNR	05 34 31.8	+22 01 03					~	6516	1
2	V* CM Tau	Psr	05 34 31.9474694616	+22 00 52.153698024					~	5476	0
3	PSR J0633+1746	Psr	06 33 54.153	+17 46 12.91					~	1308	0
4	NAME Vela Pulsar	Psr	08 35 20.65525	-45 10 35.1545			15.10		~	2446	1
5	PG 1553+113	BLL	15 55 43.0440048528	+11 11 24.365649948	14.91	14.72	14.57	13.99	~	672	1

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