Artículo
Bremer, M.; Krichbaum, T.P.; Galama, T.J.; Castro-Tirado, A.J.; Frontera, F.; Van Paradijs, J.; Mirabel, I.F.; Costa, E. "Millimetre detection of GRB 970508" (1998) Astronomy and Astrophysics. 332(1):L13-L16
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Abstract:
The γ-ray burst source GRB 970508 has been detected as a continuum point source at 86.2 GHz with the IRAM Plateau de Bure Interferometer (PdBI). By combining the UV tables of May 17th, 19th, 21st and 22nd, one obtains a point source flux of 1.62 ± 0.25 mJy, which amounts to a 6.5σ detection. Three individual tentative detections were made on May 19-22, and the source was only non-detected later with 3σ upper limits between 0.87 and 1.83 mJy. Observations at 232 GHz gave only upper limits. The lowest one from combined May 19 and 21 data is 4.5 mJy (3σ). No significant variation of the source during individual observing dates was seen in either frequency band. Comparing the May 17-22 detection with the later non-detections, we see a significant fading which is not well fitted with the F ∝ t-1.1±0.1 law found at higher frequencies. We exclude that the 86.2 GHz fluxes have been modulated significantly by interstellar scintillation. This indicates that the millimetre characteristics of GRB 970508 provide a new aspect of the intrinsic development of the source.
Registro:
| Documento: | Artículo |
| Título: | Millimetre detection of GRB 970508 |
| Autor: | Bremer, M.; Krichbaum, T.P.; Galama, T.J.; Castro-Tirado, A.J.; Frontera, F.; Van Paradijs, J.; Mirabel, I.F.; Costa, E. |
| Filiación: | Inst. de Radio Astron. Millimetrique, 300 rue de la Piscine, F-38406 Saint-Martin d'Hères, France Max-Planck-Inst. F. Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany University of Amsterdam, Kruislaan 403, 1098 SJ Amsterdam, Netherlands LAEFF-INTA, Villafranca del Castillo, P.O. Box 50.727, E-28080 Madrid, Spain Dipartimento di Fisica, Università di Ferrara, Via Paradiso, 11, I-44100 Ferrara, Italy CEA/DSM/DAPNIA Serv. d'Astrophysique, F-91191 Gif-sur-Yvette, France Istituto di Astrofisica Spaziale, CNR., Via E. Fermi, 21, I-00044 Frascati, Italy Inst. Astronomia y Fis. del Espacio, CC 67, Suc 28, 1428 Buenos Aires, Argentina Istituto TESRE, CNR, Via P. Gobetti, 101, I-40129 Bologna, Italy |
| Palabras clave: | Gamma-ray bursts; GRB 970508; Radio continuum observations |
| Año: | 1998 |
| Volumen: | 332 |
| Número: | 1 |
| Página de inicio: | L13 |
| Página de fin: | L16 |
| Título revista: | Astronomy and Astrophysics |
| Título revista abreviado: | Astron. Astrophys. |
| ISSN: | 00046361 |
| CODEN: | AAEJA |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v332_n1_pL13_Bremer |
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Citas:
---------- APA ----------
Bremer, M., Krichbaum, T.P., Galama, T.J., Castro-Tirado, A.J., Frontera, F., Van Paradijs, J., Mirabel, I.F.,..., Costa, E. (1998) . Millimetre detection of GRB 970508. Astronomy and Astrophysics, 332(1), L13-L16.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v332_n1_pL13_Bremer [ ]
---------- CHICAGO ----------
Bremer, M., Krichbaum, T.P., Galama, T.J., Castro-Tirado, A.J., Frontera, F., Van Paradijs, J., et al. "Millimetre detection of GRB 970508" . Astronomy and Astrophysics 332, no. 1 (1998) : L13-L16.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v332_n1_pL13_Bremer [ ]
---------- MLA ----------
Bremer, M., Krichbaum, T.P., Galama, T.J., Castro-Tirado, A.J., Frontera, F., Van Paradijs, J., et al. "Millimetre detection of GRB 970508" . Astronomy and Astrophysics, vol. 332, no. 1, 1998, pp. L13-L16.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v332_n1_pL13_Bremer [ ]
---------- VANCOUVER ----------
Bremer, M., Krichbaum, T.P., Galama, T.J., Castro-Tirado, A.J., Frontera, F., Van Paradijs, J., et al. Millimetre detection of GRB 970508. Astron. Astrophys. 1998;332(1):L13-L16.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v332_n1_pL13_Bremer [ ]
