Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Gutkin, Julia"'
Autor:
Senchyna, Peter, Stark, Daniel P., Vidal-García, Alba, Chevallard, Jacopo, Charlot, Stéphane, Mainali, Ramesh, Jones, Tucker, Wofford, Aida, Feltre, Anna, Gutkin, Julia
Nearby dwarf galaxies provide a unique laboratory in which to test stellar population models below Z(circle dot)/2. Such tests are particularly important for interpreting the surprising high-ionization ultraviolet (UV) line emission detected at z > 6
Externí odkaz:
http://hdl.handle.net/10150/625962
http://arizona.openrepository.com/arizona/handle/10150/625962
http://arizona.openrepository.com/arizona/handle/10150/625962
Autor:
Stark, Daniel P., Ellis, Richard S., Charlot, Stéphane, Chevallard, Jacopo, Tang, Mengtao, Belli, Sirio, Zitrin, Adi, Mainali, Ramesh, Gutkin, Julia, Vidal-García, Alba, Bouwens, Rychard, Oesch, Pascal
We discuss new Keck/MOSFIRE spectroscopic observations of four luminous galaxies at z similar or equal to 7-9 selected to have intense optical line emission by Roberts-Borsani et al. Previous follow-up has revealed Ly alpha in two of the four galaxie
Externí odkaz:
http://hdl.handle.net/10150/623114
http://arizona.openrepository.com/arizona/handle/10150/623114
http://arizona.openrepository.com/arizona/handle/10150/623114
Autor:
Gutkin, Julia
Je présente un nouveau modèle d'émission nébulaire de galaxies à formation d'étoiles, que j'ai développé en combinant un modèle récent de synthèse de populations stellaires avec un code classique de photoionisation. Je détaille les princi
Externí odkaz:
http://www.theses.fr/2016PA066255/document
Autor:
Chevallard, Jacopo, Charlot, Stéphane, Senchyna, Peter, Stark, Daniel P., Vidal-García, Alba, Feltre, Anna, Gutkin, Julia, Jones, Tucker, Mainali, Ramesh, Wofford, Aida
Measurements of the galaxy UV luminosity function at z>6 suggest that young stars hosted in low-mass star-forming galaxies produced the bulk of hydrogen-ionizing photons necessary to reionize the intergalactic medium (IGM) by redshift z~6. Whether st
Externí odkaz:
http://arxiv.org/abs/1709.03503
We present a new model of the nebular emission from star-forming galaxies in a wide range of chemical compositions, appropriate to interpret observations of galaxies at all cosmic epochs. The model relies on the combination of state-of-the-art stella
Externí odkaz:
http://arxiv.org/abs/1607.06086
Autor:
Stark, Daniel P., Ellis, Richard S., Charlot, Stephane, Chevallard, Jacopo, Tang, Mengtao, Belli, Sirio, Zitrin, Adi, Mainali, Ramesh, Gutkin, Julia, Vidal-Garcia, Alba, Bouwens, Rychard, Oesch, Pascal
We discuss new Keck/MOSFIRE spectroscopic observations of four luminous galaxies at z~7-9 selected to have intense optical line emission by Roberts-Borsani et al. (2016). Previous follow-up has revealed Lyman-alpha in two of the four galaxies. Our ne
Externí odkaz:
http://arxiv.org/abs/1606.01304
In the context of observations of the rest-frame ultraviolet and optical emission from distant galaxies, we explore the emission-line properties of photoionization models of active and inactive galaxies. Our aim is to identify new line-ratio diagnost
Externí odkaz:
http://arxiv.org/abs/1511.08217
Autor:
Stark, Daniel P., Walth, Gregory, Charlot, Stephane, Clement, Benjamin, Feltre, Anna, Gutkin, Julia, Richard, Johan, Mainali, Ramesh, Robertson, Brant, Siana, Brian, Tang, Mengtao, Schenker, Matthew
We present Keck/MOSFIRE observations of UV metal lines in four bright gravitationally-lensed z~6-8 galaxies behind the cluster Abell 1703. The spectrum of A1703-zd6, a highly-magnified star forming galaxy with a Lyman-alpha redshift of z=7.045, revea
Externí odkaz:
http://arxiv.org/abs/1504.06881
Autor:
Stark, Daniel P., Richard, Johan, Charlot, Stephane, Clement, Benjamin, Ellis, Richard, Siana, Brian, Robertson, Brant, Schenker, Matthew, Gutkin, Julia, Wofford, Aida
Deep spectroscopic observations of z~6.5 galaxies have revealed a marked decline with increasing redshift in the detectability of Lyman-alpha emission. While this may offer valuable insight into the end of the reionisation process, it presents a fund
Externí odkaz:
http://arxiv.org/abs/1408.3649
Autor:
Stark, Daniel P., Richard, Johan, Siana, Brian, Charlot, Stephane, Freeman, William R., Gutkin, Julia, Wofford, Aida, Robertson, Brant, Amanullah, Rahman, Watson, Darach, Milvang-Jensen, Bo
We present deep spectroscopy of 17 very low mass (M* ~ 2.0x10^6 Msun to 1.4x10^9 Msun) and low luminosity (M_UV ~ -13.7 to -19.9) gravitationally lensed galaxies in the redshift range z~1.5-3.0. Deep rest-frame ultraviolet spectra reveal large equiva
Externí odkaz:
http://arxiv.org/abs/1408.1420