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GRB 190114C in the nuclear region of an interacting galaxy: A detailed host analysis using ALMA, the HST, and the VLT
GRB 190114C in the nuclear region of an interacting galaxy: A detailed host analysis using ALMA, the HST, and the VLT
- Source :
- Astron.Astrophys., Astron.Astrophys., 2020, 633, pp.A68. ⟨10.1051/0004-6361/201936668⟩, Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 633, pp.A68. ⟨10.1051/0004-6361/201936668⟩, de Ugarte Postigo, A, Thone, C C, Martin, S, Japelj, J, Levan, A J, Michalowski, M J, Selsing, J, Kann, D A, Schulze, S, Palmerio, J T, Vergani, S D, Tanvir, N R, Bensch, K, Covino, S, D'Elia, V, De Pasquale, M, Fruchter, A S, Fynbo, J P U, Hartmann, D, Heintz, K E, van der Horst, A J, Izzo, L, Jakobsson, P, Ng, K C Y, Perley, D A, Rossi, A, Sbarufatti, B, Salvaterra, R, Sanchez-Ramirez, R, Watson, D & Xu, D 2020, ' GRB 190114C in the nuclear region of an interacting galaxy A detailed host analysis using ALMA, the HST, and the VLT ', Astronomy & Astrophysics, vol. 633, A68 . https://doi.org/10.1051/0004-6361/201936668, Astronomy & Astrophysics, 633, pp. 1-10, Astronomy & Astrophysics, 633, 1-10, Digital.CSIC. Repositorio Institucional del CSIC, instname
- Publication Year :
- 2020
-
Abstract
- Context. For the first time, very high energy emission up to the TeV range has been reported for a gamma-ray burst (GRB). It is still unclear whether the environmental properties of GRB 190114C might have contributed to the production of these very high energy photons, or if it is solely related to the released GRB emission. Aims. The relatively low redshift of the GRB (z = 0.425) allows us to study the host galaxy of this event in detail, and to potentially identify idiosyncrasies that could point to progenitor characteristics or environmental properties that might be responsible for this unique event. Methods. We used ultraviolet, optical, infrared, and submillimetre imaging and spectroscopy obtained with the HST, the VLT, and ALMA to obtain an extensive dataset on which the analysis of the host galaxy is based. Results. The host system is composed of a close pair of interacting galaxies (Δv = 50 km s-1), both of which are well detected by ALMA in CO(3-2). The GRB occurred within the nuclear region (∼170 pc from the centre) of the less massive but more star-forming galaxy of the pair. The host is more massive (log(M/M⊙ ) = 9.3) than average GRB hosts at this redshift, and the location of the GRB is rather unique. The higher star formation rate was probably triggered by tidal interactions between the two galaxies. Our ALMA observations indicate that both host galaxy and companion have a high molecular gas fraction, as has been observed before in interacting galaxy pairs. Conclusions. The location of the GRB within the core of an interacting galaxy with an extinguished line of sight is indicative of a denser environment than typically observed for GRBs and could have been crucial for the generation of the very high energy photons that were observed. © ESO 2020.<br />This paper makes use of the following ALMA data: ADS/JAO.ALMA#2018.A.00020.T. ALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with NRC (Canada), MOST and ASIAA (Taiwan), and KASI (Republic of Korea), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO and NAOJ. CT, AdUP, DAK, MB, and LI acknowledge support from the Spanish research project AYA2017-89384-P. CT and AdUP acknowledge support from funding associated to Ramon y Cajal fellowships (RyC-2012-09984 and RyC-2012-09975). DAK acknowledges support from the Spanish research project RTI2018-098104-J-I00. M.J.M. acknowledges the support of the National Science Centre, Poland through the SONATA BIS grant 2018/30/E/ST9/00208. JPUF thanks the Carlsberg Foundation for support. KEH and PJ acknowledge support by a Project Grant (162948-051) from The Icelandic Research Fund. JS and DW are supported in part by Independent Research Fund Denmark grant DFF-7014-00017. The Cosmic Dawn Center is supported by the Danish National Research Foundation under grant No. 140.
- Subjects :
- Infrared
Astronomy
Astrophysics::High Energy Astrophysical Phenomena
FOS: Physical sciences
DUST
Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
01 natural sciences
STAR-FORMATION
CORE-COLLAPSE SUPERNOVAE
0103 physical sciences
SPECTRA
Spectroscopy
individual: 190114C [gamma-ray burst]
010303 astronomy & astrophysics
molecules [ISM]
QC
Astrophysics::Galaxy Astrophysics
QB
High Energy Astrophysical Phenomena (astro-ph.HE)
GAMMA-RAY BURSTS
LEGACY SURVEY
CALIBRATION
Physics
[PHYS]Physics [physics]
gamma-ray burst: individual: 190114C
ISM [galaxies]
010308 nuclear & particles physics
Astronomy and Astrophysics
Astrophysics - Astrophysics of Galaxies
MOLECULAR GAS
Redshift
Galaxy
ISM: molecules
Delta-v (physics)
ENERGY AFTERGLOW EMISSION
13. Climate action
Space and Planetary Science
Astrophysics of Galaxies (astro-ph.GA)
galaxies: star formation
Astrophysics::Earth and Planetary Astrophysics
star formation [galaxies]
SKY SURVEY
Gamma-ray burst
Astrophysics - High Energy Astrophysical Phenomena
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Host (network)
Event (particle physics)
galaxies: ISM
Subjects
Details
- Language :
- English
- ISSN :
- 00046361 and 14320746
- Database :
- OpenAIRE
- Journal :
- Astron.Astrophys., Astron.Astrophys., 2020, 633, pp.A68. ⟨10.1051/0004-6361/201936668⟩, Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 633, pp.A68. ⟨10.1051/0004-6361/201936668⟩, de Ugarte Postigo, A, Thone, C C, Martin, S, Japelj, J, Levan, A J, Michalowski, M J, Selsing, J, Kann, D A, Schulze, S, Palmerio, J T, Vergani, S D, Tanvir, N R, Bensch, K, Covino, S, D'Elia, V, De Pasquale, M, Fruchter, A S, Fynbo, J P U, Hartmann, D, Heintz, K E, van der Horst, A J, Izzo, L, Jakobsson, P, Ng, K C Y, Perley, D A, Rossi, A, Sbarufatti, B, Salvaterra, R, Sanchez-Ramirez, R, Watson, D & Xu, D 2020, ' GRB 190114C in the nuclear region of an interacting galaxy A detailed host analysis using ALMA, the HST, and the VLT ', Astronomy & Astrophysics, vol. 633, A68 . https://doi.org/10.1051/0004-6361/201936668, Astronomy & Astrophysics, 633, pp. 1-10, Astronomy & Astrophysics, 633, 1-10, Digital.CSIC. Repositorio Institucional del CSIC, instname
- Accession number :
- edsair.doi.dedup.....1ca18c5a5e63ac998f8482e45cd74e17
- Full Text :
- https://doi.org/10.1051/0004-6361/201936668⟩