37 citations · 118 across the 22 of their papers we have counts for
6 papers · 1 filter
Can Wolf-Rayet stars be the missing ingredient to explain high-z He II ionizing radiation?
G. González-Torà, A. A. C. Sander, E. Egorova +7
Classical Wolf-Rayet (WR) stars are hot, massive stars with depleted hydrogen. At low metallicities (Z), WN3-type WR stars have relatively thin winds and are major sources of ioniz…
SDSS-V LVM: Detectability of Wolf-Rayet stars and their He II ionizing flux in low-metallicity environments I. The weak-lined, early-type WN3 stars in the SMC
G. González-Torà, A. A. C. Sander, E. Egorova +18
The Small Magellanic Cloud (SMC) is the nearest low-metallicity dwarf galaxy. Its proximity and low reddening has enabled us to detect its Wolf-Rayet (WR) star population with 12 k…
Extremely iron-poor O-type stars in the Magellanic Bridge
E. C. Schösser, V. Ramachandran, A. A. C. Sander +7
To study stars analogous to those in the early Universe with redshift z > 3, we need to probe environments with low metallicities. Until recently, massive O-type stars with metalli…
Constraining the duration of ram pressure stripping features in the optical from the direction of jellyfish galaxy tails
Vicente Salinas, Yara L. Jaffé, Rory Smith +12
Ram pressure stripping is perhaps the most efficient mechanism for removing gas and quenching galaxies in dense environments as they move through the intergalactic medium. Extreme…
MUSE crowded field 3D spectroscopy in NGC 300 II. Quantitative spectroscopy of BA-type supergiants
Gemma González-Torà, Miguel A. Urbaneja, Norbert Przybilla +4
A quantitative spectral analysis of BA-type supergiants and bright giants in an inner spiral arm region of the nearby spiral galaxy NGC 300 is presented, based on observations with…
The temperatures of red supergiants in low metallicity environments
Gemma González-Torà, Ben Davies, Rolf-Peter Kudritzki +1
The temperatures of red supergiants (RSGs) are expected to depend on metallicity (Z) in such a way that lower-Z RSGs are warmer. In this work, we investigate the Z-dependence of th…