2026-08-20T06:01:19Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/352002023-08-26T11:09:38Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Pérez González, Pablo Guillermo
author
Cardiel López, Nicolás
author
Gallego Maestro, Jesús
2023-06-19T15:02:41Z
2023-06-19T15:02:41Z
2014-10-11
0035-8711
10.1093/mnrasl/slu099
https://hdl.handle.net/20.500.14352/35200
http://dx.doi.org/10.1093/mnrasl/slu099
http://mnrasl.oxfordjournals.org/
We are undertaking a search for high-redshift low-luminosity Lyman Alpha sources in the SHARDS (Survey for High-z Absorption Red and Dead Sources) survey. Among the pre-selected Lyman Alpha sources two candidates were spotted, located 3.19 arcsec apart, and tentatively at the same redshift. Here, we report on the spectroscopic confirmation with Gran Telescopio Canarias of the Lyman Alpha emission from this pair of galaxies at a confirmed spectroscopic redshifts of z=5.07. Furthermore, one of the sources is interacting/merging with another close companion that looks distorted. Based on the analysis of the spectroscopy and additional photometric data, we infer that most of the stellar mass of these objects was assembled in a burst of star formation 100 Myr ago. A more recent burst (2 Myr old) is necessary to account for the measured Lyman Alpha flux. We claim that these two galaxies are good examples of Lyman Alpha sources undergoing episodic star formation. Besides, these sources very likely constitute a group of interacting Lyman Alpha emitters (LAEs).
eng
Episodic star formation in a group of LAEs at z=5.07
journal article
URL
https://docta.ucm.es/bitstreams/3babe235-55a1-45c7-8c14-ef29cc2e49ed/download
File
MD5
b10f8f04d85358f80b3a9558183b7c55
1202313
application/pdf
perezgonzalez02libre.pdf