Browsing Institutt for teoretisk astrofysikk by Author "Padmanabhan, Hamsa"

Now showing items 1-9 of 9

  • COMAP Early Science. I. Overview 
    Cleary, Kieran A.; Borowska, Jowita; Breysse, Patrick C.; Catha, Morgan; Chung, Dongwoo T.; Church, Sarah E.; Dickinson, Clive; Eriksen, Hans Kristian Kamfjord; Foss, Marie Kristine; Gundersen, Joshua Ott; Harper, Stuart E.; Harris, Andrew I.; Hobbs, Richard; Ihle, Håvard Tveit; Kim, Junhan; Kocz, Jonathon; Lamb, James W.; Lunde, Jonas Gahr Sturtzel; Padmanabhan, Hamsa; Pearson, Timothy J.; Philip, Liju; Powell, Travis W.; Rasmussen, Maren S.; Readhead, Anthony C. S.; Rennie, Thomas J.; Silva, Marta Bruno; Stutzer, Nils-Ole; Uzgil, Bade D.; Watts, Duncan; Wehus, Ingunn Kathrine; Woody, David P.; Basoalto, Lilian; Bond, J. Richard; Dunne, Delaney A.; Gaier, Todd; Hensley, Brandon; Keating, Laura C.; Lawrence, Charles R.; Murray, Norman; Paladini, Roberta; Reeves, Rodrigo; Viero, Marco P.; Wechsler, Risa H. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    The CO Mapping Array Project (COMAP) aims to use line-intensity mapping of carbon monoxide (CO) to trace the distribution and global properties of galaxies over cosmic time, back to the Epoch of Reionization (EoR). To ...
  • COMAP Early Science. II. Pathfinder Instrument 
    Lamb, James W.; Cleary, Kieran A.; Woody, David P.; Catha, Morgan; Chung, Dongwoo T.; Gundersen, Joshua Ott; Harper, Stuart E.; Harris, Andrew I.; Hobbs, Richard; Ihle, Håvard Tveit; Kocz, Jonathon; Pearson, Timothy J.; Philip, Liju; Powell, Travis W.; Basoalto, Lilian; Bond, J. Richard; Borowska, Jowita; Breysse, Patrick C.; Church, Sarah E.; Dickinson, Clive; Dunne, Delaney A.; Eriksen, Hans Kristian Kamfjord; Foss, Marie Kristine; Gaier, Todd; Kim, Junhan; Lawrence, Charles R.; Lunde, Jonas Gahr Sturtzel; Padmanabhan, Hamsa; Rasmussen, Maren S.; Readhead, Anthony C. S.; Reeves, Rodrigo; Rennie, Thomas J.; Stutzer, Nils-Ole; Viero, Marco P.; Watts, Duncan; Wehus, Ingunn Kathrine (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Line intensity mapping (LIM) is a new technique for tracing the global properties of galaxies over cosmic time. Detection of the very faint signals from redshifted carbon monoxide (CO), a tracer of star formation, pushes ...
  • COMAP Early Science. III. CO Data Processing 
    Foss, Marie Kristine; Ihle, Håvard Tveit; Borowska, Jowita; Cleary, Kieran A.; Eriksen, Hans Kristian Kamfjord; Harper, Stuart E.; Kim, Junhan; Lamb, James W.; Lunde, Jonas Gahr Sturtzel; Philip, Liju; Rasmussen, Maren; Stutzer, Nils-Ole; Uzgil, Bade D.; Watts, Duncan; Wehus, Ingunn Kathrine; Woody, David P.; Bond, J. Richard; Breysse, Patrick C.; Catha, Morgan; Church, Sarah E.; Chung, Dongwoo T.; Dickinson, Clive; Dunne, Delaney A.; Gaier, Todd; Gundersen, Joshua Ott; Harris, Andrew I.; Hobbs, Richard; Lawrence, Charles R.; Murray, Norman; Readhead, Anthony C. S.; Padmanabhan, Hamsa; Pearson, Timothy J.; Rennie, Thomas J. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    We describe the first-season CO Mapping Array Project (COMAP) analysis pipeline that converts raw detector readouts to calibrated sky maps. This pipeline implements four main steps: gain calibration, filtering, data ...
  • COMAP Early Science. IV. Power Spectrum Methodology and Results 
    Ihle, Håvard Tveit; Borowska, Jowita; Cleary, Kieran A.; Eriksen, Hans Kristian Kamfjord; Foss, Marie Kristine; Harper, Stuart E.; Kim, Junhan; Lunde, Jonas Gahr Sturtzel; Philip, Liju; Rasmussen, Maren; Stutzer, Nils-Ole; Uzgil, Bade D.; Watts, Duncan; Wehus, Ingunn Kathrine; Bond, J. Richard; Breysse, Patrick C.; Catha, Morgan; Church, Sarah E.; Chung, Dongwoo T.; Dickinson, Clive; Dunne, Delaney A.; Gaier, Todd; Gundersen, Joshua Ott; Harris, Andrew I.; Hobbs, Richard; Lamb, James W.; Lawrence, Charles R.; Murray, Norman; Readhead, Anthony C. S.; Padmanabhan, Hamsa; Pearson, Timothy J.; Rennie, Thomas J.; Woody, David P. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    We present the power spectrum methodology used for the first-season COMAP analysis, and assess the quality of the current data set. The main results are derived through the Feed–Feed Pseudo-Cross-Spectrum (FPXS) method, ...
  • COMAP Early Science. V. Constraints and Forecasts at z ∼3 
    Chung, Dongwoo T.; Breysse, Patrick C.; Cleary, Kieran A.; Ihle, Håvard Tveit; Padmanabhan, Hamsa; Silva, Marta Bruno; Bond, J. Richard; Borowska, Jowita; Catha, Morgan; Church, Sarah E.; Dunne, Delaney A.; Eriksen, Hans Kristian Kamfjord; Foss, Marie Kristine; Gaier, Todd; Gundersen, Joshua Ott; Harper, Stuart E.; Harris, Andrew I.; Hensley, Brandon; Hobbs, Richard; Keating, Laura C.; Kim, Junhan; Lamb, James W.; Lawrence, Charles R.; Lunde, Jonas Gahr Sturtzel; Murray, Norman; Pearson, Timothy J.; Philip, Liju; Rasmussen, Maren; Readhead, Anthony C. S.; Rennie, Thomas J.; Stutzer, Nils-Ole; Uzgil, Bade D.; Viero, Marco P.; Watts, Duncan; Wechsler, Risa H.; Wehus, Ingunn Kathrine; Woody, David P. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    We present the current state of models for the z ∼ 3 carbon monoxide (CO) line intensity signal targeted by the CO Mapping Array Project (COMAP) Pathfinder in the context of its early science results. Our fiducial model, ...
  • COMAP Early Science. VII. Prospects for CO Intensity Mapping at Reionization 
    Breysse, Patrick C.; Chung, Dongwoo T.; Cleary, Kieran A.; Ihle, Håvard Tveit; Padmanabhan, Hamsa; Silva, Marta Bruno; Bond, J. Richard; Borowska, Jowita; Catha, Morgan; Church, Sarah E.; Dunne, Delaney A.; Eriksen, Hans Kristian Kamfjord; Foss, Marie Kristine; Gaier, Todd; Gundersen, Joshua Ott; Harris, Andrew I.; Hobbs, Richard; Keating, Laura; Lamb, James W.; Lawrence, Charles R.; Lunde, Jonas Gahr Sturtzel; Murray, Norman; Pearson, Timothy J.; Philip, Liju; Rasmussen, Maren; Readhead, Anthony C. S.; Rennie, Thomas J.; Stutzer, Nils-Ole; Viero, Marco P.; Watts, Duncan; Wehus, Ingunn Kathrine; Woody, David P. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    We introduce COMAP-EoR, the next generation of the Carbon Monoxide Mapping Array Project aimed at extending CO intensity mapping to the Epoch of Reionization. COMAP-EoR supplements the existing 30 GHz COMAP Pathfinder with ...
  • COMAP Early Science. VIII. A Joint Stacking Analysis with eBOSS Quasars 
    Dunne, Delaney A.; Cleary, Kieran A.; Breysse, Patrick C.; Chung, Dongwoo T.; Ihle, Håvard Tveit; Bond, J. Richard; Eriksen, Hans Kristian Kamfjord; Gundersen, Joshua Ott; Keating, Laura C.; Kim, Junhan; Lunde, Jonas Gahr Sturtzel; Murray, Norman; Padmanabhan, Hamsa; Philip, Liju; Stutzer, Nils-Ole; Tolgay, Doğa; Wehus, Ingunn Kathrine; Church, Sarah E.; Gaier, Todd; Harris, Andrew I.; Hobbs, Richard; Lamb, James W.; Lawrence, Charles R.; Readhead, Anthony C. S.; Woody, David P. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
  • Cross-correlating Carbon Monoxide Line-intensity Maps with Spectroscopic and Photometric Galaxy Surveys 
    Chung, Dongwoo T.; Viero, Marco P.; Church, Sarah E.; Wechsler, Risa H.; Alvarez, Marcelo A.; Bond, John Richard; Breysse, Patrick C.; Cleary, Kieran A.; Eriksen, Hans Kristian Kamfjord; Foss, Marie Kristine; Gundersen, Joshua O.; Harper, Stuart H.; Ihle, Håvard Tveit; Keating, Laura C.; Murray, Norman; Padmanabhan, Hamsa; Stein, George F.; Wehus, Ingunn Kathrine (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Line-intensity mapping is an emerging field of observational work, with strong potential to fit into a larger effort to probe large-scale structure and small-scale astrophysical phenomena using multiple complementary ...
  • The deconvolved distribution estimator: enhancing reionization-era CO line-intensity mapping analyses with a cross-correlation analogue for one-point statistics 
    Chung, Dongwoo T.; Bangari, Ishika; Breysse, Patrick C.; Ihle, Håvard Tveit; Bond, J. Richard; Dunne, Delaney A.; Padmanabhan, Hamsa; Philip, Liju; Rennie, Thomas J.; Viero, Marco P. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    ABSTRACT We present the deconvolved distribution estimator (DDE), an extension of the voxel intensity distribution (VID), in the context of future observations proposed as part of the CO Mapping Array Project (COMAP). The ...