A5007975530- Astrophysical Phenomena and Observations
- Galaxies: Formation, Evolution, Phenomena
- Stellar, planetary, and galactic studies
- Gamma-ray bursts and supernovae
- Astrophysics and Star Formation Studies
- Astronomy and Astrophysical Research
- Astronomical Observations and Instrumentation
- Adaptive optics and wavefront sensing
Instituto de Astrofísica de Canarias
2018-2021
Universidad de La Laguna
2018-2021
We present observations of SN 2020fqv, a Virgo-cluster Type II core-collapse supernova (CCSN) with high temporal resolution light curve from the Transiting Exoplanet Survey Satellite (TESS) covering time explosion; ultraviolet (UV) spectroscopy Hubble Space Telescope (HST) starting 3.3 days post-explosion; ground-based spectroscopic 1.1~days along extensive photometric observations. Massive stars have complicated mass-loss histories leading up to their death as CCSNe, creating circumstellar...
ABSTRACT We present deep rest-frame UV spectroscopic observations using the Gran Telescopio Canarias of six gravitationally lensed Lyα emitters (LAEs) at 2.36 < z 2.82 selected from BELLS GALLERY survey. By taking magnifications into account, we show that LAEs can be as luminous LLyα ≃ 30 × 1042 erg s−1 and MUV −23 (AB) without invoking an AGN component, in contrast with previous findings. measure equivalent widths, $EW_{0}\,\rm (Ly\alpha)$, ranging 16 to 50 Å escape fractions,...
We report the discovery of BOSS-EUVLG1 at z=2.469, by far most luminous, almost un-obscured star-forming galaxy known any redshift. First classified as a QSO within Baryon Oscillation Spectroscopic Survey, follow-up observations with Gran Telescopio Canarias reveal that its large luminosity, MUV = -24.40 and log(L_Lya/erg s-1) 44.0, is due to an intense burst star-formation, not AGN or gravitational lensing. compact (reff 1.2 kpc), young (4-5 Myr) starburst stellar mass log(M*/Msun) 10.0 +/-...
Abstract The submillimeter galaxy (SMG) HERMES J105751.1+573027 (hereafter HLock01) at z = 2.9574 ± 0.0001 is one of the brightest gravitationally lensed sources discovered in Herschel Multi-tiered Extragalactic Survey. Apart from high flux densities far-infrared, it also extremely bright rest-frame ultraviolet (UV), with a total apparent magnitude m UV ≃ 19.7 mag. We report here deep spectroscopic observations Gran Telescopio Canarias optically images HLock01. Our results suggest that...
We present the discovery of HLock01-LAB, a luminous and large Lya nebula at z=3.326. Medium-band imaging long-slit spectroscopic observations with Gran Telescopio Canarias reveal extended emission in 1215\AA, CIV1550\AA, HeII 1640\AA lines over ~100kpc, total luminosity L(Lya)=(6.4+/-0.1)x10^44 erg s^-1. HLock01-LAB presents an elongated morphology aligned two faint radio sources contained within central ~8kpc nebula. The structures are consistent to be jets or lobes galaxy, whose spectrum...