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Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
Passages: The Large Millimeter Telescope And Alma Observations Of Extremely Luminous High-Redshift Galaxies Identified By The Planck, Derek A. Berman, Min S. Yun, K. C. Harrington, P. Kamieneski, J. Lowenthal, B. L. Frye, Q. D. Wang, G. W. Wilson, I. Aretxaga, M. Chavez, R. Cybulski, V. De La Luz, N. Erickson, D. Ferrusca, D. H. Hughes, A. Montaña, G. Narayanan, D. Sánchez-Argüelles, F. P. Schloerb, K. Souccar, E. Terlevich, R. Terlevich, J. A. Zavala
Passages: The Large Millimeter Telescope And Alma Observations Of Extremely Luminous High-Redshift Galaxies Identified By The Planck, Derek A. Berman, Min S. Yun, K. C. Harrington, P. Kamieneski, J. Lowenthal, B. L. Frye, Q. D. Wang, G. W. Wilson, I. Aretxaga, M. Chavez, R. Cybulski, V. De La Luz, N. Erickson, D. Ferrusca, D. H. Hughes, A. Montaña, G. Narayanan, D. Sánchez-Argüelles, F. P. Schloerb, K. Souccar, E. Terlevich, R. Terlevich, J. A. Zavala
Astronomy: Faculty Publications
The Planck All-Sky Survey to Analyze Gravitationally-lensed Extreme Starbursts project aims to identify a population of extremely luminous galaxies using the Planck all-sky survey and to explore the nature of their gas fuelling, induced starburst, and the resulting feedback that shape their evolution. Here, we report the identification of 22 high-redshift luminous dusty star-forming galaxies (DSFGs) at z = 1.1-3.3 drawn from a candidate list constructed using the Planck Catalogue of Compact Sources and Wide-field Infrared Survey Explorer all-sky survey. They are confirmed through follow-up dust continuum imaging and CO spectroscopy using AzTEC and the Redshift Search Receiver on the …
Total Molecular Gas Masses Of Planck – Herschel Selected Strongly Lensed Hyper Luminous Infrared Galaxies, K. C. Harrington, M. S. Yun, B. Magnelli, D. T. Frayer, A. Karim, A. Weiß, D. Riechers, E. F. Jiménez-Andrade, D. Berman, James Lowenthal, F. Bertoldi
Total Molecular Gas Masses Of Planck – Herschel Selected Strongly Lensed Hyper Luminous Infrared Galaxies, K. C. Harrington, M. S. Yun, B. Magnelli, D. T. Frayer, A. Karim, A. Weiß, D. Riechers, E. F. Jiménez-Andrade, D. Berman, James Lowenthal, F. Bertoldi
Astronomy: Faculty Publications
We report the detection of CO(1–0) line emission from seven Planck and Herschel selected hyper luminous (LIR(8−1000μm) > 1013 L⊙) infrared galaxies with the Green Bank Telescope (GBT). CO(1–0) measurements are a vital tool to trace the bulk molecular gas mass across all redshifts. Our results place tight constraints on the total gas content of these most apparently luminous high-z star-forming galaxies (apparent IR luminosities of LIR > 1013 − 14 L⊙), while we confirm their predetermined redshifts measured using the Large Millimeter Telescope, LMT (zCO = 1.33–3.26). The CO(1–0) lines show similar profiles as compared to Jup = 2–4 transitions previously …
Far-Ultraviolet Spectra Of Starburst Galaxies: Stellar Population And The Kinematics Of The Interstellar Medium, Rosa M. Gonzalez Delgado, Claus Leitherer, Timothy Heckman, James D. Lowenthal, Henry C. Ferguson, Carmelle Robert
Far-Ultraviolet Spectra Of Starburst Galaxies: Stellar Population And The Kinematics Of The Interstellar Medium, Rosa M. Gonzalez Delgado, Claus Leitherer, Timothy Heckman, James D. Lowenthal, Henry C. Ferguson, Carmelle Robert
Astronomy: Faculty Publications
The far-ultraviolet spectra of the four starburst galaxies NGC 6090, Mrk 66, Mrk 1267, and IRAS 0833 + 6517 were observed with the Hopkins Ultraviolet Telescope during the Astro-2 mission. Additional data were obtained for IRAS 0833 + 6517 with the Goddard High-Resolution Spectrograph (GHRS) on the Hubble Space Telescope. We analyze the observations in terms of the stellar content and the kinematics of the interstellar medium, and we discuss the implications of these results for the interpretation of the ultraviolet spectra of high-redshift galaxies. Evolutionary synthesis models are used to constrain the star formation history from the absolute ultraviolet …
The Lyman Continuum In Starburst Galaxies Observed With The Hopkins Ultraviolet Telescope, Claus Leitherer, Henry C. Ferguson, Timothy M. Heckman, James D. Lowenthal
The Lyman Continuum In Starburst Galaxies Observed With The Hopkins Ultraviolet Telescope, Claus Leitherer, Henry C. Ferguson, Timothy M. Heckman, James D. Lowenthal
Astronomy: Faculty Publications
The starburst galaxies IRAS 08339+6517, Mrk 1267, Mrk 66, and Mrk 496 (=NGC 6090) were observed with the Hopkins Ultraviolet Telescope (HUT) during the Astro-2 mission. All four galaxies have radial velocities larger than 5000 km s-1, permitting the measurement of their intrinsic Lyman continuum fluxes redward of the H I absorption edge in our Galaxy. The sample was selected on the basis of having the most favorable conditions for the escape of Lyman continuum photons. Two a upper limits of Fk < 7 X 10-16 ergs s-1 cm-2 A-1 were obtained for the flux around 900 A within the rest frame of each galaxy.A set of theoretical spectral energy distributions has been calculated. We show that there exists a tight correlation between the continuum luminosity at 900 A and the total number of photons emitted in the Lyman continuum, which is valid for high- and low-metallicity galaxies and essentially all relevant initial mass functions and star formation histories. Comparison with the observed values suggests that, on average, less than 3% of the intrinsic Lyman continuum photons escape from the program galaxies. Models for the ionization of the intergalactic medium at high 2 by young starbursts require a significant fraction of the ionizing radiation to escape from the galaxy. If the four galaxies observed by us have properties similar to young galaxies at redshift 2 2 3, such galaxies are not likely to provide Lyman continuum photons for the ionization of the early universe.