Tobias Marriage

Tobias Marriage

Assistant Professor

Bloomberg 215
410-516-6526
marriage@jhu.edu
Curriculum Vitae

Biography
Publications

Tobias Marriage’s research interests lie in cosmology and astrophysics with an emphasis on the cosmic microwave background (CMB). His research activities include millimeter-wave instrumentation, fieldwork, and analysis. Marriage played a major part in building the Atacama Cosmology Telescope (ACT), a mm-wave telescope 5,000 meters above sea level in Chile that studies fine angular-scale structure in the CMB. He and his group continue to work with ACT data and other datasets to study galaxies and galaxy clusters. Marriage is now a Co-PI of the Cosmology Large Angular Scale Surveyor (CLASS) project. CLASS is an array of telescopes designed to measure the CMB polarization on the largest angular scales over a broad range of frequencies. The primary goal of CLASS is to detect and characterize the expected gravitational waves from inflation via the induced B-mode polarization pattern in the CMB. CLASS also measures when the first stars formed (by constraining the optical depth to reionization) and searches for large angular scale polarization anomalies that could provide new insights beyond the current cosmological paradigm.

Selected Publications:

On the redshift distribution and physical properties of DSFGs from ACT

Evidence for the Thermal Sunyaev-Zel'dovich Effect Associated with Quasar Feedback

Recovery of Large Angular Scale CMB Polarization for Instruments Employing Variable-delay Polarization Modulators

Measuring the Largest Angular Scale CMB B-mode Polarization with Galactic Foregrounds on a Cut Sky

CLASS: the cosmology large angular scale surveyor

A measurement of the millimeter emission and the Sunyaev-Zel'dovich effect associated with low-frequency radio sources

The Atacama Cosmology Telescope: Sunyaev-Zel'dovich selected galaxy clusters at 148 GHz from three seasons of data

The Atacama Cosmology Telescope: dusty star-forming galaxies and active galactic nuclei in the Southern survey

The Atacama Cosmology Telescope: Data Characterization and Mapmaking

The Atacama Cosmology Telescope: Sunyaev-Zel'dovich-Selected Galaxy Clusters at 148 GHz in the 2008 Survey

The Atacama Cosmology Telescope: Extragalactic Sources at 148 GHz in the 2008 Survey

Testing and assembly of the detectors for the Millimeter Bolometer Array Camera on ACT

Cosmic Microwave Background Observations with a Compact Heterogeneous 150 GHz Interferometer in Chile

Displaying the 20 most recent publications. (Please refresh the page if no publications initially appear.)

View the Google Scholar Profile for complete publications list.

K Knowles, HT Intema, AJ Baker, V Bharadwaj, JR Bond, C Cress, ...
A giant radio halo in a low-mass SZ-selected galaxy cluster: ACT-CL J0256. 5+ 0006
Monthly Notices of the Royal Astronomical Society 459 (4), 4240-4258, 2016

Z Zhang, T Essinger-Hileman, Z Xu, T Marriage
Characterization of Optical Components for the Cosmology Large Angular Scale Surveyor (CLASS)
American Astronomical Society Meeting Abstracts 228, 2016

T Marriage, CLASS Collaboration
Probing Inflation, Reionization, and Neutrinos with CLASS
American Astronomical Society Meeting Abstracts 228, 2016

C Sifón, N Battaglia, M Hasselfield, F Menanteau, LF Barrientos, JR Bond, ...
The Atacama Cosmology Telescope: Dynamical masses for 44 SZ-selected galaxy clusters over 755 square degrees
Monthly Notices of the Royal Astronomical Society, stw1284, 2016

D Crichton, MB Gralla, K Hall, TA Marriage, NL Zakamska, N Battaglia, ...
Evidence for the thermal Sunyaev–Zel'dovich effect associated with quasar feedback
Monthly Notices of the Royal Astronomical Society 458 (2), 1478-1492, 2016

NJ Miller, DT Chuss, TA Marriage, EJ Wollack, JW Appel, CL Bennett, ...
Recovery of Large Angular Scale CMB Polarization for Instruments Employing Variable-delay Polarization Modulators
The Astrophysical Journal 818 (2), 151, 2016

B Kirk, M Hilton, C Cress, SM Crawford, JP Hughes, N Battaglia, JR Bond, ...
VizieR Online Data Catalog: SALT galaxy clusters detected by ACT (Kirk+, 2015)
VizieR Online Data Catalog 744, 2016

JF Wu, AJ Baker, P Aguirre, D Barkats, M Halpern, M Hilton, JP Hughes, ...
Investigating star formation properties of galaxies in massive clusters with Herschel and ALMA
American Astronomical Society Meeting Abstracts 227, 2016

AJ Baker, MS Yun, G Wilson, T Su, J Rivera, AI Harris, DT Frayer, ...
The Atacama Cosmology Telescope: Spectroscopic Redshifts for Dusty Star-Forming Galaxies
American Astronomical Society Meeting Abstracts 227, 2016

DT Chuss, A Ali, M Amiri, J Appel, CL Bennett, F Colazo, KL Denis, ...
Cosmology Large Angular Scale Surveyor (CLASS) Focal Plane Development
Journal of Low Temperature Physics, 1-6, 2015

T Su, TA Marriage, V Asboth, AJ Baker, JR Bond, D Crichton, MJ Devlin, ...
On the redshift distribution and physical properties of DSFGs from ACT
arXiv preprint arXiv:1511.06770, 2015

DJ Watts, D Larson, TA Marriage, MH Abitbol, JW Appel, CL Bennett, ...
Measuring the Largest Angular Scale CMB B-mode Polarization with Galactic Foregrounds on a Cut Sky
The Astrophysical Journal 814 (2), 103, 2015

N Battaglia, A Leauthaud, H Miyatake, M Hasselfield, MB Gralla, R Allison, ...
Weak-Lensing Mass Calibration of the Atacama Cosmology Telescope Equatorial Sunyaev-Zeldovich Cluster Sample with the Canada-France-Hawaii Telescope Stripe 82 Survey
arXiv preprint arXiv:1509.08930, 2015

KL Denis, A Ali, J Appel, CL Bennett, MP Chang, DT Chuss, FA Colazo, ...
Fabrication of Feedhorn-Coupled Transition Edge Sensor Arrays for Measurement of the Cosmic Microwave Background Polarization
Journal of Low Temperature Physics, 1-6, 2015

B Kirk, M Hilton, C Cress, SM Crawford, JP Hughes, N Battaglia, JR Bond, ...
SALT spectroscopic observations of galaxy clusters detected by ACT and a type II quasar hosted by a brightest cluster galaxy
Monthly Notices of the Royal Astronomical Society 449 (4), 4010-4026, 2015

RR Lindner, P Aguirre, AJ Baker, JR Bond, D Crichton, MJ Devlin, ...
The Atacama Cosmology Telescope: The LABOCA/ACT Survey of Clusters at All Redshifts
The Astrophysical Journal 803 (2), 79, 2015

AJ Baker, RR Lindner, P Aguirre, JR Bond, M Hilton, AD Hincks, ...
The Atacama Cosmology Telescope: Followup Imaging of SZE-Selected Clusters with ATCA, LABOCA, and Herschel
American Astronomical Society Meeting Abstracts 225, 2015

MB Gralla, D Crichton, TA Marriage, W Mo, P Aguirre, GE Addison, ...
A measurement of the millimetre emission and the Sunyaev–Zel'dovich effect associated with low-frequency radio sources
Monthly Notices of the Royal Astronomical Society 445 (1), 460-478, 2014

D Marsden, M Gralla, TA Marriage, ER Switzer, B Partridge, M Massardi, ...
VizieR Online Data Catalog: ACT high significance 148 and 218GHz sources (Marsden+, 2014)
VizieR Online Data Catalog 743, 91556, 2014

S Naess, M Hasselfield, J McMahon, MD Niemack, GE Addison, PAR Ade, ...
The Atacama Cosmology Telescope: CMB Polarization at 200< ℓ< 9000
Journal of Cosmology and Astroparticle Physics 2014 (10), 007, 2014