2018ApJ...867L..19A

Query : 2018ApJ...867L..19A

2018ApJ...867L..19A - Astrophys. J., 867, L19-L19 (2018/November-1)

Periastron observations of TeV gamma-ray emission from a binary system with a 50-year period.

ABEYSEKARA A.U., BENBOW W., BIRD R., BRILL A., BROSE R., BUCKLEY J.H., CHROMEY A.J., DANIEL M.K., FALCONE A., FINLEY J.P., FORTSON L., FURNISS A., GENT A., GILLANDERS G.H., HANNA D., HASSAN T., HERVET O., HOLDER J., HUGHES G., HUMENSKY T.B., KAARET P., KAR P., KERTZMAN M., KIEDA D., KRAUSE M., KRENNRICH F., KUMAR S., LANG M.J., LIN T.T.Y., MAIER G., MORIARTY P., MUKHERJEE R., O'BRIEN S., ONG R.A., OTTE A.N., PARK N., PETRASHYK A., POHL M., PUESCHEL E., QUINN J., RAGAN K., RICHARDS G.T., ROACHE E., SADEH I., SANTANDER M., SCHLENSTEDT S., SEMBROSKI G.H., SUSHCH I., TYLER J., VASSILIEV V.V., WAKELY S.P., WEINSTEIN A., WELLS R.M., WILCOX P., WILHELM A., WILLIAMS D.A., WILLIAMSON T.J., ZITZER B. (The VERITAS Collaboration), ACCIARI V.A., ANSOLDI S., ANTONELLI L.A., ARBET ENGELS A., BAACK D., BABIC A., BANERJEE B., BARRES DE ALMEIDA U., BARRIO J.A., BECERRA GONZALEZ J., BEDNAREK W., BERNARDINI E., BERTI A., BESENRIEDER J., BHATTACHARYYA W., BIGONGIARI C., BILAND A., BLANCH O., BONNOLI G., BUSETTO G., CAROSI R., CERIBELLA G., CIKOTA S., COLAK S.M., COLIN P., COLOMBO E., CONTRERAS J.L., CORTINA J., COVINO S., D'ELIA V., DA VELA P., DAZZI F., DE ANGELIS A., DE LOTTO B., DELFINO M., DELGADO J., DI PIERRO F., DO SOUTO ESPINERA E., DOMINGUEZ A., DOMINIS PRESTER D., DORNER D., DORO M., EINECKE S., ELSAESSER D., FALLAH RAMAZANI V., FATTORINI A., FERNANDEZ-BARRAL A., FERRARA G., FIDALGO D., FOFFANO L., FONSECA M.V., FONT L., FRUCK C., GALINDO D., GALLOZZI S., GARCIA LOPEZ R.J., GARCZARCZYK M., GASPARYAN S., GAUG M., GIAMMARIA P., GODINOVIC N., GUBERMAN D., HADASCH D., HAHN A., HERRERA J., HOANG J., HRUPEC D., INOUE S., ISHIO K., IWAMURA Y., KUBO H., KUSHIDA J., KUVEZDIC D., LAMASTRA A., LELAS D., LEONE F., LINDFORS E., LOMBARDI S., LONGO F., LOPEZ M., LOPEZ-ORAMAS A., MACHADO DE OLIVEIRA FRAGA B., MAGGIO C., MAJUMDAR P., MAKARIEV M., MALLAMACI M., MANEVA G., MANGANARO M., MANNHEIM K., MARASCHI L., MARIOTTI M., MARTINEZ M., MASUDA S., MAZIN D., MINEV M., MIRANDA J.M., MIRZOYAN R., MOLINA E., MORALEJO A., MORENO V., MORETTI E., MUNAR-ADROVER P., NEUSTROEV V., NIEDZWIECKI A., NIEVAS ROSILLO M., NIGRO C., NILSSON K., NINCI D., NISHIJIMA K., NODA K., NOGUES L., NOTHE M., PAIANO S., PALACIO J., PANEQUE D., PAOLETTI R., PAREDES J.M., PEDALETTI G., PENIL P., PERESANO M., PERSIC M., PRADA MORONI P.G., PRANDINI E., PULJAK I., GARCIA J.R., RHODE W., RIBO M., RICO J., RIGHI C., RUGLIANCICH A., SAHA L., SAHAKYAN N., SAITO T., SATALECKA K., SCHWEIZER T., SITAREK J., SNIDARIC I., SOBCZYNSKA D., SOMERO A., STAMERRA A., STRZYS M., SURIC T., TAVECCHIO F., TEMNIKOV P., TERZIC T., TESHIMA M., TORRES-ALBA N., TSUJIMOTO S., VAN SCHERPENBERG J., VANZO G., VAZQUEZ ACOSTA M., VOVK I., WILL M., ZARIC D. (The MAGIC Collaboration)

Abstract (from CDS):

We report on observations of the pulsar/Be star binary system PSR J2032+4127/MT91 213 in the energy range between 100GeV and 20TeV with the Very Energetic Radiation Imaging Telescope Array and Major Atmospheric Gamma Imaging Cherenkov telescope arrays. The binary orbit has a period of approximately 50 years, with the most recent periastron occurring on 2017 November 13. Our observations span from 18 months prior to periastron to one month after. A new point-like gamma-ray source is detected, coincident with the location of PSR J2032+4127/MT91 213. The gamma-ray light curve and spectrum are well characterized over the periastron passage. The flux is variable over at least an order of magnitude, peaking at periastron, thus providing a firm association of the TeV source with the pulsar/Be star system. Observations prior to periastron show a cutoff in the spectrum at an energy around 0.5TeV. This result adds a new member to the small population of known TeV binaries, and it identifies only the second source of this class in which the nature and properties of the compact object are firmly established. We compare the gamma-ray results with the light curve measured with the X-ray Telescope on board the Neil Gehrels Swift Observatory and with the predictions of recent theoretical models of the system. We conclude that significant revision of the models is required to explain the details of the emission that we have observed, and we discuss the relationship between the binary system and the overlapping steady extended source, TeV J2032+4130.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): gamma rays: general - pulsars: individual: (PSR J2032+4127, VER J2032+414, MAGIC J2032+4127) - stars: individual: MT91 213 - X-rays: binaries

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 CPD-63 2495 HXB 13 02 47.6544015048 -63 50 08.626970292 10.34 10.72 9.98 10.03   O9.5Ve 852 0
2 V* V479 Sct HXB 18 26 15.0561548880 -14 50 54.247274304 12.02 12.23 11.27 11.04   ON6V((f))z 613 2
3 MAGIC J2031+4134 ? 20 31.0 +41 34           ~ 1 0
4 TeV J2032+4130 gam 20 31.7 +41 31           ~ 148 0
5 [MT91] 213 Psr 20 32 13.1247390384 +41 27 24.346666440 13.12 13.08 11.266     B0Vp 334 0
6 V* V1521 Cyg HXB 20 32 25.78 +40 57 27.9           WN4/5-6/7 2035 2
7 Ass Cyg OB 2 As* 20 33.2 +41 19           ~ 1023 0

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