Scientific highlights of the HETE-2 mission

D. Q. Lamb, G. R. Ricker, J. L. Atteia, C. Barraud, M. Boer, J. Braga, Nathaniel Butler, T. Cline, G. B. Crew, J. P. Dezalay, T. Q. Donaghy, J. P. Doty, A. Dullighan, E. E. Fenimore, M. Galassi, C. Graziani, K. Hurley, J. G. Jernigan, N. Kawai, A. LevineR. Manchanda, M. Matsuoka, F. Martel, G. Monnelly, E. Morgan, J. F. Olive, G. Pizzichini, G. Prigozhin, T. Sakamoto, Y. Shirasaki, M. Suzuki, K. Takagishi, T. Tamagawa, K. Torii, R. Vanderspek, G. Vedrenne, J. Villasenor, S. E. Woosley, M. Yamauchi, A. Yoshida

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

The High Energy Explorer Satellite 2 (HETE-2) mission has been highly productive. It has observed more than 250 γ-ray bursts (GRBs) so far. It is currently localizing 25-30 GRBs per year, and has localized 43 GRBs to date. Twenty-one of these localizations have led to the detection of X-ray, optical, or radio afterglows, and as of now, 11 of the bursts with afterglows have redshift determinations. HETE-2 has also observed more than 45 bursts from soft γ-ray repeaters, and more than 700 X-ray bursts.HETE-2 has confirmed the connection between GRBs and Type Ic supernovae, a singular achievement and certainly one of the scientific highlights of the mission so far. It has provided evidence that the isotropic-equivalent energies and luminosities of GRBs may be correlated with redshift; such a correlation would imply that GRBs and their progenitors evolve strongly with redshift. Both of these results have profound implications for the nature of GRB progenitors and for the use of GRBs as a probe of cosmology and the early universe.HETE-2 has placed severe constraints on any X-ray or optical afterglow of a short GRB. It has made it possible to explore the previously unknown behavior of optical afterglows at very early times, and has opened up the era of high-resolution spectroscopy of GRB optical afterglows. It is also solving the mystery of "optically dark" GRBs, and revealing the nature of X-ray flashes.

Original languageEnglish (US)
Pages (from-to)423-430
Number of pages8
JournalNew Astronomy Reviews
Volume48
Issue number5-6
DOIs
StatePublished - Apr 2004
Externally publishedYes

Fingerprint

Explorer 2 satellite
afterglows
bursts
energy
rays
x rays
repeaters
cosmology
supernovae
flash
universe
spectroscopy
luminosity
probe
radio
probes
high resolution

Keywords

  • γ-rays: γ-ray bursts - supernovae

ASJC Scopus subject areas

  • Astronomy and Astrophysics

Cite this

Lamb, D. Q., Ricker, G. R., Atteia, J. L., Barraud, C., Boer, M., Braga, J., ... Yoshida, A. (2004). Scientific highlights of the HETE-2 mission. New Astronomy Reviews, 48(5-6), 423-430. https://doi.org/10.1016/j.newar.2003.12.042

Scientific highlights of the HETE-2 mission. / Lamb, D. Q.; Ricker, G. R.; Atteia, J. L.; Barraud, C.; Boer, M.; Braga, J.; Butler, Nathaniel; Cline, T.; Crew, G. B.; Dezalay, J. P.; Donaghy, T. Q.; Doty, J. P.; Dullighan, A.; Fenimore, E. E.; Galassi, M.; Graziani, C.; Hurley, K.; Jernigan, J. G.; Kawai, N.; Levine, A.; Manchanda, R.; Matsuoka, M.; Martel, F.; Monnelly, G.; Morgan, E.; Olive, J. F.; Pizzichini, G.; Prigozhin, G.; Sakamoto, T.; Shirasaki, Y.; Suzuki, M.; Takagishi, K.; Tamagawa, T.; Torii, K.; Vanderspek, R.; Vedrenne, G.; Villasenor, J.; Woosley, S. E.; Yamauchi, M.; Yoshida, A.

In: New Astronomy Reviews, Vol. 48, No. 5-6, 04.2004, p. 423-430.

Research output: Contribution to journalArticle

Lamb, DQ, Ricker, GR, Atteia, JL, Barraud, C, Boer, M, Braga, J, Butler, N, Cline, T, Crew, GB, Dezalay, JP, Donaghy, TQ, Doty, JP, Dullighan, A, Fenimore, EE, Galassi, M, Graziani, C, Hurley, K, Jernigan, JG, Kawai, N, Levine, A, Manchanda, R, Matsuoka, M, Martel, F, Monnelly, G, Morgan, E, Olive, JF, Pizzichini, G, Prigozhin, G, Sakamoto, T, Shirasaki, Y, Suzuki, M, Takagishi, K, Tamagawa, T, Torii, K, Vanderspek, R, Vedrenne, G, Villasenor, J, Woosley, SE, Yamauchi, M & Yoshida, A 2004, 'Scientific highlights of the HETE-2 mission', New Astronomy Reviews, vol. 48, no. 5-6, pp. 423-430. https://doi.org/10.1016/j.newar.2003.12.042
Lamb DQ, Ricker GR, Atteia JL, Barraud C, Boer M, Braga J et al. Scientific highlights of the HETE-2 mission. New Astronomy Reviews. 2004 Apr;48(5-6):423-430. https://doi.org/10.1016/j.newar.2003.12.042
Lamb, D. Q. ; Ricker, G. R. ; Atteia, J. L. ; Barraud, C. ; Boer, M. ; Braga, J. ; Butler, Nathaniel ; Cline, T. ; Crew, G. B. ; Dezalay, J. P. ; Donaghy, T. Q. ; Doty, J. P. ; Dullighan, A. ; Fenimore, E. E. ; Galassi, M. ; Graziani, C. ; Hurley, K. ; Jernigan, J. G. ; Kawai, N. ; Levine, A. ; Manchanda, R. ; Matsuoka, M. ; Martel, F. ; Monnelly, G. ; Morgan, E. ; Olive, J. F. ; Pizzichini, G. ; Prigozhin, G. ; Sakamoto, T. ; Shirasaki, Y. ; Suzuki, M. ; Takagishi, K. ; Tamagawa, T. ; Torii, K. ; Vanderspek, R. ; Vedrenne, G. ; Villasenor, J. ; Woosley, S. E. ; Yamauchi, M. ; Yoshida, A. / Scientific highlights of the HETE-2 mission. In: New Astronomy Reviews. 2004 ; Vol. 48, No. 5-6. pp. 423-430.
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AU - Atteia, J. L.

AU - Barraud, C.

AU - Boer, M.

AU - Braga, J.

AU - Butler, Nathaniel

AU - Cline, T.

AU - Crew, G. B.

AU - Dezalay, J. P.

AU - Donaghy, T. Q.

AU - Doty, J. P.

AU - Dullighan, A.

AU - Fenimore, E. E.

AU - Galassi, M.

AU - Graziani, C.

AU - Hurley, K.

AU - Jernigan, J. G.

AU - Kawai, N.

AU - Levine, A.

AU - Manchanda, R.

AU - Matsuoka, M.

AU - Martel, F.

AU - Monnelly, G.

AU - Morgan, E.

AU - Olive, J. F.

AU - Pizzichini, G.

AU - Prigozhin, G.

AU - Sakamoto, T.

AU - Shirasaki, Y.

AU - Suzuki, M.

AU - Takagishi, K.

AU - Tamagawa, T.

AU - Torii, K.

AU - Vanderspek, R.

AU - Vedrenne, G.

AU - Villasenor, J.

AU - Woosley, S. E.

AU - Yamauchi, M.

AU - Yoshida, A.

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N2 - The High Energy Explorer Satellite 2 (HETE-2) mission has been highly productive. It has observed more than 250 γ-ray bursts (GRBs) so far. It is currently localizing 25-30 GRBs per year, and has localized 43 GRBs to date. Twenty-one of these localizations have led to the detection of X-ray, optical, or radio afterglows, and as of now, 11 of the bursts with afterglows have redshift determinations. HETE-2 has also observed more than 45 bursts from soft γ-ray repeaters, and more than 700 X-ray bursts.HETE-2 has confirmed the connection between GRBs and Type Ic supernovae, a singular achievement and certainly one of the scientific highlights of the mission so far. It has provided evidence that the isotropic-equivalent energies and luminosities of GRBs may be correlated with redshift; such a correlation would imply that GRBs and their progenitors evolve strongly with redshift. Both of these results have profound implications for the nature of GRB progenitors and for the use of GRBs as a probe of cosmology and the early universe.HETE-2 has placed severe constraints on any X-ray or optical afterglow of a short GRB. It has made it possible to explore the previously unknown behavior of optical afterglows at very early times, and has opened up the era of high-resolution spectroscopy of GRB optical afterglows. It is also solving the mystery of "optically dark" GRBs, and revealing the nature of X-ray flashes.

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