GRB 160410A: the first Chemical Study of the Interstellar Medium of a Short GRB

Fernández, J. F. Agüí; Thöne, C. C.; Kann, D. A.; Postigo, A. de Ugarte; Selsing, J.; Schady, P.; Yates, R. M.; Greiner, J.; Oates, S. R.; Malesani, D.; Xu, D.; Klotz, A.; Campana, S.; Rossi, A.; Perley, D. A.; Blazek, M.; D'Avanzo, P.; Giunta, A.; Hartmann, D.; Heintz, K. E.; Jakobsson, P.; Kirkpatrick, C. C.; Kouveliotou, C.; Melandri, A.; Pugliese, G.; Salvaterra, R.; Starling, R. L. C.; Tanvir, N. R.; Vergani, S. D.; Wiersema, K.

doi:10.48550/arxiv.2109.13838

Cited by 9 publications

(24 citation statements)

References 132 publications

(148 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The processed spectra are displayed in Figure 4, and the result for each sGRB is reported in Table 2 and described in more detail in Section 4. We note that the optical spectrum obtained for sGRB 160410A is a rare case of afterglow spectroscopy (Figure 5) as discussed in Agüí Fernández et al (2021).…”

Section: Optical Spectroscopymentioning

confidence: 61%

“…No source is identified coincident with the optical localization to depth 𝑔 24.9, 𝑅 25.0, and 𝐼 24.2 AB mag. We note that a deeper constraint on an underlying host of 𝑟 27.17 (3𝜎; corrected for Galactic extinction) was presented by Agüí Fernández et al (2021) based on late-time deep GTC imaging. This is in sharp contrast to the results obtained from optical spectroscopy of the afterglow (see below).…”

Section: A110 Grb 160410amentioning

confidence: 78%

“…Therefore, in order to disentangle between faint hosts and large offsets we require better constraints as to the distance to short GRBs. The most critical observational tests are i) rapid afterglow spectroscopy to determine redshift independent of the galaxy association (e.g., GRB 160410A; this work and Agüí Fernández et al 2021), ii) the conclusive identification of a kilonova, providing indirect evidence of the GRB distance scale (Troja et al 2019;Chase et al 2022), or iii) the advent of next generation GW detectors capable of detecting compact binaries at cosmological distances (Punturo et al 2010;Dwyer et al 2015).…”

Section: Interpretation Of Hostless Eventsmentioning

confidence: 99%

“…Disentangling between the different scenarios is observationally challenging. Due to the faintness of sGRB afterglows, redshift measurements from afterglow spectroscopy are rarely successful (e.g., de Ugarte Postigo et al 2014;Agüí Fernández et al 2021). Therefore, deep imaging and spectroscopic observations from the most sensitive telescopes are required to identify the GRB host galaxy and estimate its distance scale.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A deep survey of short GRB host galaxies over $z\sim0-2$: implications for offsets, redshifts, and environments

O'Connor¹,

Troja²,

S.³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

A significant fraction (∼30%) of well-localized short gamma-ray bursts (sGRBs) lack a coincident host galaxy. This leads to two main scenarios: i) that the progenitor system merged outside of the visible light of its host, or ii) that the sGRB resided within a faint and distant galaxy that was not detected by follow-up observations. Discriminating between these scenarios has important implications for constraining the formation channels of neutron star mergers, the rate and environments of gravitational wave sources, and the production of heavy elements in the Universe. In this work, we present the results of our observing campaign targeted at 31 sGRBs that lack a putative host galaxy. Our study effectively doubles the sample of well-studied sGRB host galaxies, now totaling 72 events of which 28% lack a coincident host galaxy to deep limits (𝑟 26 or 𝐹110𝑊 27 AB mag), and represents the largest homogeneously selected catalog of sGRB offsets to date. We find that 70% of sub-arcsecond localized sGRBs occur within 10 kpc of their host's nucleus, with a median projected physical offset of 5.6 kpc. Using this larger population, we discover a redshift evolution in the locations of sGRBs: bursts at low-𝑧 occur at 2× larger offsets compared to those at 𝑧 > 0.5. Furthermore, we find evidence for a sample of hostless sGRBs at 𝑧 1 that are indicative of a larger high-𝑧 population, further constraining the sGRB redshift distribution and disfavoring log-normal delay time models.

show abstract

Section: Optical Spectroscopymentioning

confidence: 61%

Section: A110 Grb 160410amentioning

confidence: 78%

Section: Interpretation Of Hostless Eventsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A deep survey of short GRB host galaxies over $z\sim0-2$: implications for offsets, redshifts, and environments

O'Connor¹,

Troja²,

S.³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Figure 6 shows our sample of 30 composite short GRB afterglows normalised to 𝑧 = 1 (Kann et al 2011;Agüí Fernández et al 2021).…”

Section: Comparison To Sources With Kilonova Candidatesmentioning

confidence: 99%

Inhomogeneous Jets from Neutron Star Mergers: One Jet to Rule them all

Lamb¹,

Nativi²,

Rosswog³

et al. 2022

Preprint

View full text Add to dashboard Cite

The broad, ∼ 4 order of magnitude range in energy, inferred via afterglow observations, for the short Gamma-Ray Burst (GRB) population is difficult to reconcile with the narrow energy distribution expected from neutron star merger progenitors. Using the resultant profiles from 3D hydrodynamic simulations of relativistic jets interacting with neutron star merger wind ejecta, we show how the inhomogeneity of energy and velocity can alter the observed afterglow lightcurve. From a single jet we find that the peak afterglow flux depends sensitively on the observer's line-of-sight: at an inclination within the GRB emitting region we find peak flux variability on the order < 0.5 dex through rotational orientation, and < 1.3 dex for polar inclination. The inferred jet kinetic energy for a fixed parameter afterglow covers ∼ 1/3 of the observed short GRB population. We find a physically motivated, analytic jet structure function via our simulations and include an approximation for the varying collimation due to the merger ejecta mass. We show that by considering the observed range of merger ejecta masses, a short GRB jet population with a single intrinsic energy is capable of explaining the observed broad diversity in short GRB kinetic energies.

show abstract

The environments and hosts of neutron star mergers and short GRBs

Thöne

2020

Proc. IAU

View full text Add to dashboard Cite

The hosts of binary neutron star (BNS) mergers and hence short GRBs are not only galaxies with old stellar populations, infact most short GRB hosts are at least mildly star-forming galaxies. According to theoretical studies of merger populations, both short and long merging time-scales are expected. The immediate environments of BNS mergers are not as directly related to the property of the progenitor system as for long GRBs, since the system usually travelled a significant distance from their birth place. However, studying the stellar population properties across the host can still give us vital information on the contribution of formation channels and on merger timescales. Here we review the properties of NS merger hosts in emission using integrated-light and resolved observations. The afterglows of short GRBs furthermore serve to study the interstellar medium in their host galaxies in absorption. We present our best example to date, GRB 160410A at z = 1.7, one of the highest redshift short GRBs.

show abstract

GRB 160410A: the first Chemical Study of the Interstellar Medium of a Short GRB

Cited by 9 publications

References 132 publications

A deep survey of short GRB host galaxies over $z\sim0-2$: implications for offsets, redshifts, and environments

A deep survey of short GRB host galaxies over $z\sim0-2$: implications for offsets, redshifts, and environments

Inhomogeneous Jets from Neutron Star Mergers: One Jet to Rule them all

The environments and hosts of neutron star mergers and short GRBs

Contact Info

Product

Resources

About