Browsing by Author "Riechers, Dominik A."

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    CCAT-prime Collaboration: Science Goals and Forecasts with Prime-Cam on the Fred Young Submillimeter Telescope
    (2023) Aravena, Manuel E.; Austermann, Jason E.; Basu, Kaustuv; Battaglia, Nicholas; Beringue, Benjamin; Bertoldi, Frank; Bigiel, Frank C.; Bond, J. Richard; Breysse, Patrick C.; Broughton, Colton C.; Bustos, Ricardo; Chapman, Scott C. K.; Charmetant, Maude T.; Choi, Steve K. E.; Chung, Dongwoo T. F.; Clark, Susan E. T.; Cothard, Nicholas F.; Crites, Abigail T.; Dev, Ankur J.; Douglas, Kaela; Duell, Cody J.; Duenner, Rolando; Ebina, Haruki; Erler, Jens M.; Fich, Michel; Fissel, Laura M.; Foreman, Simon A.; Freundt, R. G.; Gallardo, Patricio A.; Gao, Jiansong; Garcia, Pablo E.; Giovanelli, Riccardo E.; Golec, Joseph E. P.; Groppi, Christopher E.; Haynes, Martha P.; Henke, Douglas; Hensley, Brandon; Herter, Terry; Higgins, Ronan; Hlozek, Renee; Huber, Anthony; Huber, Zachary; Hubmayr, Johannes; Jackson, Rebecca; Johnstone, Douglas C.; Karoumpis, Christos; Keating, Laura C.; Komatsu, Eiichiro; Li, Yaqiong C.; Magnelli, Benjamin D.; Matthews, Brenda C. J.; Mauskopf, Philip D.; McMahon, Jeffrey J.; Meerburg, P. Daniel; Meyers, Joel W.; Muralidhara, Vyoma D.; Murray, Norman W.; Niemack, Michael D.; Nikola, Thomas; Okada, Yoko A.; Puddu, Roberto; Riechers, Dominik A.; Rosolowsky, Erik; Rossi, Kayla; Rotermund, Kaja I.; Roy, Anirban; Sadavoy, Sarah, I; Schaaf, Reinhold; Schilke, Peter; Scott, Douglas K.; Simon, Robert R.; Sinclair, Adrian K. J.; Sivakoff, Gregory R. M.; Stacey, Gordon J.; Stutz, Amelia M.; Stutzki, Juergen; Tahani, Mehrnoosh A.; Thanjavur, Karun N.; Timmermann, Ralf A.; Ullom, Joel N. M.; van Engelen, Alexander R.; Vavagiakis, Eve M. D.; Vissers, Michael R.; Wheeler, Jordan D.; White, Simon D. M.; Zhu, Yijie; Zou, Bugao
    We present a detailed overview of the science goals and predictions for the Prime-Cam direct-detection camera-spectrometer being constructed by the CCAT-prime collaboration for dedicated use on the Fred Young Submillimeter Telescope (FYST). The FYST is a wide-field, 6 m aperture submillimeter telescope being built (first light in late 2023) by an international consortium of institutions led by Cornell University and sited at more than 5600 m on Cerro Chajnantor in northern Chile. Prime-Cam is one of two instruments planned for FYST and will provide unprecedented spectroscopic and broadband measurement capabilities to address important astrophysical questions ranging from Big Bang cosmology through reionization and the formation of the first galaxies to star formation within our own Milky Way. Prime-Cam on the FYST will have a mapping speed that is over 10 times greater than existing and near-term facilities for high-redshift science and broadband polarimetric imaging at frequencies above 300 GHz. We describe details of the science program enabled by this system and our preliminary survey strategies.
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    Dynamical structure of the molecular interstellar medium in an extremely bright, multiply lensed z 3 submillimeter galaxy discovered with Herschel.
    (2011) Riechers, Dominik A.; Kim, Sam; Cooray, Asantha; Omont, A.; Neri, R.; Harris, A. I.; Baker, A. J.; Cox, P.; Frayer, D. T.; Carpenter, J. M.; Auld, R.
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    Kiloparsec-scale Imaging of the CO(1-0)-traced Cold Molecular Gas Reservoir in a z ∼ 3.4 Submillimeter Galaxy
    (2022) Castillo, Marta Frias; Rybak, Matus; Hodge, Jacqueline; van der Werf, Paul; Riechers, Dominik A.; Vieira, Daniel; Rivera, Gabriela Calistro; Martinez-Ramirez, Laura N.; Walter, Fabian; de Blok, Erwin; Narayanan, Desika; Wagg, Jeff
    We present a high-resolution study of the cold molecular gas as traced by CO(1-0) in the unlensed z similar to 3.4 submillimeter galaxy SMM J13120+4242, using multiconfiguration observations with the Karl G. Jansky Very Large Array (JVLA). The gas reservoir, imaged on 0 ''.39 (similar to 3 kpc) scales, is resolved into two components separated by similar to 11 kpc with a total extent of 16 +/- 3 kpc. Despite the large spatial extent of the reservoir, the observations show a CO(1-0) FWHM linewidth of only 267 +/- 64 km s(-1). We derive a revised line luminosity of LCO(1-0)' = (10 +/- 3) x 10(10) K km s(-1) pc(2) and a molecular gas mass of M-gas = (13 +/- 3)x 10(10) (alpha(CO)/1) M-circle dot. Despite the presence of a velocity gradient (consistent with previous resolved CO(6-5) imaging), the CO(1-0) imaging shows evidence for significant turbulent motions that are preventing the gas from fully settling into a disk. The system likely represents a merger in an advanced stage. Although the dynamical mass is highly uncertain, we use it to place an upper limit on the CO-to-H-2 mass conversion factor a alpha(CO) of 1.4. We revisit the SED fitting, finding that this galaxy lies on the very massive end of the main sequence at z = 3.4. Based on the low gas fraction, short gas depletion time, and evidence for a central AGN, we propose that SMM J13120 is in a rapid transitional phase between a merger-driven starburst and an unobscured quasar. The case of SMM J13120 highlights how mergers may drive important physical changes in galaxies without pushing them off the main sequence.
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    SEARCH FOR [CII] EMISSION IN z=6.5-11 STAR-FORMING GALAXIES
    (2014) González López, Jorge; Riechers, Dominik A.; Decarli, Roberto; Walter, Fabian; Vallini, Livia; Neri, Roberto; Bertoldi, Frank; Bolatto, Alberto D.; Carilli, Christopher L.; Cox, Pierre; Cunha, Elisabete da; Ferrara, Andrea; Gallerani, Simona; Infante Lira, Leopoldo