From the 1 of 7 linked papers with an AI index.
7 papers
Charting the expansion of the Universe from z0 to z14 with HII galaxies
R. Chávez, R. Terlevich, A. L. González-Morán +14
The authors construct an updated Hubble diagram using 243 giant H II regions and H II galaxies from redshift 0 to ~14, applying the L(Hβ)–σ relation to derive cosmological paramete…
Lord of LRDs: Insights into a "Little Red Dot" with a low-ionization spectrum at z = 0.1
Xihan Ji, Francesco D'Eugenio, Ignas Juodžbalis +14
Recent observations by the James Webb Space Telescope (JWST) have revealed a puzzling population of optically red and compact galaxies with peculiar "V"-shaped spectra at high reds…
Irony at z=6.68: a bright AGN with forbidden Fe emission and multi-component Balmer absorption
Francesco D'Eugenio, Erica Nelson, Xihan Ji +11
We present the deepest medium-resolution JWST/NIRSpec spectroscopy to date of a bright Little Red Dot (LRD) AGN, Irony at z=6.68. The data reveal broad Balmer emission from H-H…
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…
Mapping the Hubble Flow from z0 to z7.5 with HII Galaxies
Ricardo Chávez, Roberto Terlevich, Elena Terlevich +7
Over twenty years ago, Type Ia Supernovae (SNIa) observations revealed an accelerating Universe expansion, suggesting a significant dark energy presence, often modelled as a cosmol…
Low dust mass and high star-formation efficiency at from deep ALMA observations
Ikki Mitsuhashi, Jorge A. Zavala, Tom J. L. C. Bakx +15
We investigate the dust mass build-up and star formation efficiency of two galaxies at , GHZ2 and GS-z14-0, by combining ALMA and JWST observations with an analytical model t…