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Photometric studies on the host galaxies of gamma-ray bursts using 3.6m Devasthal optical telescope


In this paper, we present multi-band photometric observations and analysis of the host galaxies for a sample of five interesting gamma-ray bursts (GRBs) observed using the 3.6m Devasthal optical telescope (DOT) and the back-end instruments. The host galaxy observations of GRBs provide unique opportunities to estimate the stellar mass, ages, star-formation rates and other vital properties of the burst environments and hence, progenitors. We performed a detailed spectral energy distribution (SED) modeling of the five host galaxies using an advanced tool called Prospector, a stellar population synthesis model. Furthermore, we compared the results with a larger sample of well-studied host galaxies of GRBs, supernovae and normal star-forming galaxies. Our SED modeling suggests that GRB 130603B, GRB 140102A, GRB 190829A and GRB 200826A have massive host galaxies with high star-formation rates (SFRs). On the other hand, a supernovae-connected GRB 030329 has a rare low-mass galaxy with a low star-formation rate. We also find that GRB 190829A has the highest (in our sample) amount of visual dust extinction and gas in its local environment of the host, suggesting that the observed very high-energy emission from this burst might have a unique local environment. Broadly, the five GRBs in our sample satisfy the typical correlations between host galaxies parameters and these physical parameters are more common to normal star-forming galaxies at the high-redshift Universe. Our results also demonstrate the capabilities of 3.6m DOT and the back-end instruments for the deeper photometric studies of the host galaxies of energetic transients, such as GRBs, supernovae and other transients in the long run.

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  2. Introduced as the Swift gamma-ray burst host galaxy legacy survey.



  5. This catalog comprises the properties of \(\sim \)700,000 galaxies with measured redshifts values <0.3 using SDSS.

  6. The model fit used by Salim et al. (2016, 2018) is underfitting the observed data (reduced chi-square \(=\) 2.15).


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We thank the anonymous referee for providing positive and constructive comments to improve the manuscript. RG, and SBP acknowledge BRICS grant DST/IMRCD/BRICS/PilotCall1/ProFCheap/2017(G) for the financial support. RG and SBP acknowledge the financial support of ISRO under AstroSat archival Data utilization program (DS_2B-13013(2)/1/2021-Sec.2). AA acknowledges funds and assistance provided by the Council of Scientific & Industrial Research (CSIR), India, with file no. 09/948(0003)/2020-EMR-I. AJCT and SBP acknowledge support from the Spanish ministry project PID2020-118491GB-I00. AJCT also acknowledges Junta de Andalucía project P20_01068 and the ‘Center of Excellence Severo Ochoa’ award for the Instituto de Astrofísica de Andalucía (SEV-2017-0709). This research is based on the observations obtained at the 3.6m Devasthal optical telescope (DOT), which is a national facility run and managed by Aryabhatta Research Institute of Observational Sciences (ARIES), an autonomous Institute under Department of Science and Technology, Government of India. RG and SBP thank Dr. Youdong Hu for sharing the data files used to show Figure 5 in this paper. RG also thanks Ms. Dimple for helping with Prospector.

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Correspondence to Rahul Gupta.

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This article is part of the Special Issue on “Astrophysical Jets and Observational Facilities: A National Perspective”.



Table 2 Log of the host galaxy panchromatic observations of our sample taken with 3.6m DOT and those reported in the literature. The magnitude shown with star markers is in the Vega system. NOT, CAHA, GTC, and LDT denotes the Nordic optical telescope, Centro Astronómico Hispano-Alemán, Gran Telescopio Canarias and Lowell discovery telescope, respectively
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figure 8

Posterior distributions for the SED model parameters of GRB 030329 (cyan), GRB 130603B (blue), GRB 140102A (green), GRB 190829A (black) and GRB 200826A (magenta) obtained using nested sampling via dynesty using Prospector software.

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Gupta, R., Pandey, S.B., Kumar, A. et al. Photometric studies on the host galaxies of gamma-ray bursts using 3.6m Devasthal optical telescope. J Astrophys Astron 43, 82 (2022).

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  • Gamma-ray burst: general—galaxies: dwarf—methods: data analysis—techniques: photometric