Radio and Optical Follow-up Observations and Improved Interplanetary Network Position of GRB 970111 | Zendy

T. J. Galama | Zendy; P. Groot | Zendy; R. G. Strom | Zendy; J. van Paradijs | Zendy; K. Hurley | Zendy; C. Kouveliotou | Zendy; G. J. Fishman | Zendy; C. Meegan | Zendy; J. Heise | Zendy; J. J. M. in't Zand | Zendy; A. G. de Bruyn | Zendy; L. Hanlon | Zendy; K. Bennett | Zendy; J. H. Telting | Zendy; R. G. M. Rutten | Zendy

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Radio and Optical Follow-up Observations and Improved Interplanetary Network Position of GRB 970111

Author(s) -

T. J. Galama,

P. Groot,

R. G. Strom,

J. van Paradijs,

K. Hurley,

C. Kouveliotou,

G. J. Fishman,

C. Meegan,

J. Heise,

J. J. M. in't Zand,

A. G. de Bruyn,

L. Hanlon,

K. Bennett,

J. H. Telting,

R. G. M. Rutten

Publication year - 1997

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/310822

Subject(s) - physics , astrophysics , interplanetary spaceflight , radio telescope , position error , gamma ray burst , telescope , astronomy , annulus (botany) , magnetic field , solar wind , quantum mechanics , calibration , botany , biology

We report on Westerbork 840 MHz, 1.4 and 5 GHz radio observations of theimproved IPN-WFC error box of the gamma-ray burst GRB 970111, between 26.4hours and 120 days after the event onset. In the ~ 13 sq arcmin area defined bythe IPN (BATSE and Ulysses) annulus and the published refined BeppoSAX WideField Camera error box we detected no steady sources brighter than 0.56 mJy (4sigma), and no varying radio emission, down to 1.0 mJy (4 sigma). We alsoreport on B, V, R and I band observations of the error box with the 4.2 mWilliam Herschel Telescope at La Palma.Comment: 19 pages including 4 figures, Latex, accepted for APJ

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