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First look with JWST spectroscopy: galaxies resemble local analogues
D. Schaerer, R. Marques-Chaves, L. Barrufet +5
Deep images and near-IR spectra of galaxies in the field of the lensing cluster SMACS J0723.3-7327 were recently taken in the Early Release Observations program of JWST. Among thes…
Optical spectroscopy of the extremely metal-deficient star-forming galaxy HSC J1631+4426: a test of the strong-line method
T. X. Thuan, N. G. Guseva, Y. I. Izotov
Recently, Kojima and co-authors have reported a record low oxygen abundance, 12+logO/H=6.90+/-0.03 in the low-mass star-forming galaxy HSC J1631+4426. This exceptionally low oxygen…
Lyman alpha and Lyman continuum emission of MgII-selected star-forming galaxies
Y. I. Izotov, J. Chisholm, G. Worseck +3
We present observations with the Cosmic Origins Spectrograph onboard the Hubble Space Telescope of seven compact low-mass star-forming galaxies at redshifts, z,in the range 0.3161-…
No correlation of the Lyman continuum escape fraction with spectral hardness
R. Marques-Chaves, D. Schaerer, R. O. Amorín +25
The properties that govern the production and escape of hydrogen ionizing photons (Lyman continuum, LyC; with energies >13.6 eV) in star-forming galaxies are still poorly understoo…
The Interstellar Medium of Dwarf Galaxies
Christian Henkel, Leslie K. Hunt, Yuri I. Izotov
Dwarf galaxies are by far the most numerous galaxies in the Universe, showing properties that are quite different from those of their larger and more luminous cousins. This review…
Strong Lyman continuum emitting galaxies show intense CIV 1550 emission
D. Schaerer, Y. I. Izotov, G. Worseck +7
Using the Space Telescope Imaging Spectrograph, we have obtained ultraviolet (UV) spectra from to 2000 Å of known Lyman continuum (LyC) emitting galaxies at low redshif…