Browsing Institutt for teoretisk astrofysikk by Author "Xu, Zhilei"

Now showing items 1-14 of 14

  • Atacama Cosmology Telescope: High-resolution component-separated maps across one third of the sky 
    Coulton, William; Madhavacheril, Mathew S.; Duivenvoorden, Adriaan J.; Hill, J. Colin; Abril-Cabezas, Irene; Ade, Peter A. R.; Aiola, Simone; Alford, Tommy; Amiri, Mandana; Amodeo, Stefania; An, Rui; Atkins, Zachary; Austermann, Jason E.; Battaglia, Nicholas; Battistelli, Elia Stefano; Beall, James A.; Bean, Rachel; Beringue, Benjamin; Bhandarkar, Tanay; Biermann, Emily; Bolliet, Boris; Bond, J. Richard; Cai, Hongbo; Calabrese, Erminia; Calafut, Victoria; Capalbo, Valentina; Carrero, Felipe; Chesmore, Grace E.; Cho, Hsiao-Mei; Choi, Steve K.; Clark, Susan E.; Córdova Rosado, Rodrigo; Cothard, Nicholas F.; Coughlin, Kevin; Crowley, Kevin T.; Devlin, Mark J.; Dicker, Simon; Doze, Peter; Duell, Cody J.; Duff, Shannon M.; Dunkley, Jo; Dünner, Rolando; Fanfani, Valentina; Fankhanel, Max; Farren, Gerrit; Ferraro, Simone; Freundt, Rodrigo; Fuzia, Brittany; Gallardo, Patricio A.; Garrido, Xavier; Givans, Jahmour; Gluscevic, Vera; Golec, Joseph E.; Guan, Yilun; Halpern, Mark; Han, Dongwon; Hasselfield, Matthew; Healy, Erin; Henderson, Shawn; Hensley, Brandon; Hervías-Caimapo, Carlos; Hilton, Gene C.; Hilton, Matt; Hincks, Adam D.; Hložek, Renée; Ho, Shuay-Pwu Patty; Huber, Zachary B.; Hubmayr, Johannes; Huffenberger, Kevin M.; Hughes, John P.; Irwin, Kent; Isopi, Giovanni; Jense, Hidde T.; Keller, Ben; Kim, Joshua; Knowles, Kenda; Koopman, Brian J.; Kosowsky, Arthur; Kramer, Darby; Kusiak, Aleksandra; La Posta, Adrien; Lakey, Victoria; Lee, Eunseong; Li, Zack; Li, Yaqiong; Limon, Michele; Lokken, Martine; Louis, Thibaut; Lungu, Marius; MacCrann, Niall; MacInnis, Amanda; Maldonado, Diego; Maldonado, Felipe; Mallaby-Kay, Maya; Marques, Gabriela A.; Marrewijk, Joshiwa van; McCarthy, Fiona; McMahon, Jeff; Mehta, Yogesh; Menanteau, Felipe; Moodley, Kavilan; Morris, Thomas W.; Mroczkowski, Tony; Næss, Sigurd Kirkevold; Namikawa, Toshiya; Nati, Federico; Newburgh, Laura; Nicola, Andrina; Niemack, Michael D.; Nolta, Michael R.; Orlowski-Scherer, John; Page, Lyman A.; Pandey, Shivam; Partridge, Bruce; Prince, Heather; Puddu, Roberto; Qu, Frank J.; Radiconi, Federico; Robertson, Naomi; Rojas, Felipe; Sakuma, Tai; Salatino, Maria; Schaan, Emmanuel; Schmitt, Benjamin L.; Sehgal, Neelima; Shaikh, Shabbir; Sherwin, Blake D.; Sierra, Carlos; Sievers, Jon; Sifón, Cristóbal; Simon, Sara; Sonka, Rita; Spergel, David N.; Staggs, Suzanne T.; Storer, Emilie; Switzer, Eric R.; Tampier, Niklas; Thornton, Robert; Trac, Hy; Treu, Jesse; Tucker, Carole; Ullom, Joel; Vale, Leila R.; Van Engelen, Alexander; Van Lanen, Jeff; Vargas, Cristian; Vavagiakis, Eve M.; Wagoner, Kasey; Wang, Yuhan; Wenzl, Lukas; Wollack, Edward J.; Xu, Zhilei; Zago, Fernando; Zheng, Kaiwen (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
    Observations of the millimeter sky contain valuable information on a number of signals, including the blackbody cosmic microwave background (CMB), Galactic emissions, and the Compton-y distortion due to the thermal ...
  • Calibration of Transition-edge Sensor (TES) Bolometer Arrays with Application to CLASS 
    Appel, John W.; Bennett, Charles L.; Brewer, Michael K.; Bustos, Ricardo; Chan, Manwei; Chuss, David T.; Cleary, Joseph; Couto, Jullianna D.; Dahal, Sumit; Datta, Rahul; Denis, Kevin; Eimer, Joseph; Essinger-Hileman, Thomas; Harrington, Kathleen; Iuliano, Jeffrey; Li, Yunyang; Marriage, Tobias A.; Núñez, Carolina; Osumi, Keisuke; Padilla, Ivan L.; Petroff, Matthew A.; Rostem, Karwan; Valle, Deniz A. N.; Watts, Duncan; Weiland, Janet L.; Wollack, Edward J.; Xu, Zhilei (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    The current and future cosmic microwave background (CMB) experiments fielding kilopixel arrays of transition-edge sensor (TES) bolometers require accurate and robust gain calibration methods. We simplify and refactor the ...
  • CLASS Angular Power Spectra and Map-component Analysis for 40 GHz Observations through 2022 
    Eimer, Joseph R.; Li, Yunyang; Brewer, Michael K.; Shi, Rui; Ali, Aamir; Appel, John W.; Bennett, Charles L.; Bruno, Sarah Marie; Bustos, Ricardo; Chuss, David T.; Cleary, Joseph; Dahal, Sumit; Datta, Rahul; Denes Couto, Jullianna; Denis, Kevin L.; Dünner, Rolando; Essinger-Hileman, Thomas; Fluxá, Pedro; Hubmayer, Johannes; Harrington, Kathleen; Iuliano, Jeffrey; Karakla, John; Marriage, Tobias A.; Núñez, Carolina; Parker, Lucas; Petroff, Matthew A.; Reeves, Rodrigo A.; Rostem, Karwan; Valle, Deniz A. N.; Watts, Duncan; Weiland, Janet L.; Wollack, Edward J.; Xu, Zhilei; Zeng, Lingzhen (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
  • CLASS Data Pipeline and Maps for 40 GHz Observations through 2022 
    Li, Yunyang; Eimer, Joseph R.; Osumi, Keisuke; Appel, John W.; Brewer, Michael K.; Ali, Aamir; Bennett, Charles L.; Bruno, Sarah Marie; Bustos, Ricardo; Chuss, David T.; Cleary, Joseph; Couto, Jullianna Denes; Dahal, Sumit; Datta, Rahul; Denis, Kevin L.; Dünner, Rolando; Espinoza, Francisco; Essinger-Hileman, Thomas; Fluxá Rojas, Pedro; Harrington, Kathleen; Iuliano, Jeffrey; Karakla, John; Marriage, Tobias A.; Miller, Nathan J.; Novack, Sasha; Núñez, Carolina; Petroff, Matthew A.; Reeves, Rodrigo A.; Rostem, Karwan; Shi, Rui; Valle, Deniz A. N.; Watts, Duncan; Weiland, Janet L.; Wollack, Edward J.; Xu, Zhilei; Zeng, Lingzhen (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
  • CLASS Observations of Atmospheric Cloud Polarization at millimeter Wavelengths 
    Li, Yunyang; Appel, John W.; Bennett, Charles L.; Bustos, Ricardo; Chuss, David T.; Cleary, Joseph; Couto, Jullianna Denes; Dahal, Sumit; Datta, Rahul; Dünner, Rolando; Eimer, Joseph R.; Essinger-Hileman, Thomas; Harrington, Kathleen; Iuliano, Jeffrey; Marriage, Tobias A.; Petroff, Matthew A.; Reeves, Rodrigo A.; Rostem, Karwan; Shi, Rui; Valle, Deniz A. N.; Watts, Duncan; Wolff, Oliver F.; Wollack, Edward J.; Xu, Zhilei (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract The dynamic atmosphere imposes challenges to ground-based cosmic microwave background observation, especially for measurements on large angular scales. The hydrometeors in the atmosphere, mostly in the ...
  • Construction of a large diameter reflective half-wave plate modulator for millimeter wave applications 
    Eimer, Joseph R.; Brewer, Michael K.; Chuss, David T.; Karakla, John; Shi, Rui; Appel, John W.; Bennett, Charles L.; Cleary, Joseph; Dahal, Sumit; Datta, Rahul; Essinger-Hileman, Thomas; Marriage, Tobias A.; Núñez, Carolina; Petroff, Matthew A.; Watts, Duncan; Wollack, Edward J.; Xu, Zhilei (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2022)
    Polarization modulation is a powerful technique to increase the stability of measurements by enabling the distinction of a polarized signal from dominant slow system drifts and unpolarized foregrounds. Furthermore, when ...
  • Control and systems software for the Cosmology Large Angular Scale Surveyor (CLASS) 
    Petroff, Matthew A.; Appel, John W.; Bennett, Charles L.; Brewer, Michael K.; Chan, Manwei; Chuss, David T.; Cleary, Joseph; Couto, Jullianna Denes; Dahal, Sumit; Eimer, Joseph R.; Essinger-Hileman, Thomas; Fluxá Rojas, Pedro; Harrington, Kathleen; Iuliano, Jeffrey; Marriage, Tobias A.; Miller, Nathan J.; Nunes Valle, Deniz Augusto; Watts, Duncan; Xu, Zhilei (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    The Cosmology Large Angular Scale Surveyor (CLASS) is an array of polarization-sensitive millimeter wave telescopes that observes ∼ 70% of the sky at frequency bands centered near 40 GHz, 90 GHz, 150 GHz, and 220 GHz from ...
  • Cosmology Large Angular Scale Surveyor (CLASS): pointing stability and beam measurements at 90, 150, and 220 GHz 
    Datta, Rahul; Brewer, Michael K.; Couto, Jullianna D.; Eimer, Joseph R.; Li, Yunyang; Xu, Zhilei; Appel, John W.; Bustos, Ricardo; Chuss, David T.; Cleary, Joseph; Dahal, Sumit; Essinger-Hileman, Thomas; Iuliano, Jeffrey; Marriage, Tobias A.; Núñez, Carolina; Petroff, Matthew A.; Rostem, Karwan; Watts, Duncan; Wollack, Edward J. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2022)
    The Cosmology Large Angular Scale Surveyor (CLASS) telescope array surveys 75% of the sky from the Atacama desert in Chile at frequency bands centered near 40, 90, 150, and 220 GHz. CLASS measures the largest-angular scale ...
  • Design and characterization of new 90 GHz detectors for the Cosmology Large Angular Scale Surveyor (CLASS) 
    Núñez, Carolina; Appel, John W.; Bruno, Sarah Marie; Datta, Rahul; Ali, Aamir; Bennett, Charles L.; Couto, Jullianna Denes; Denis, Kevin L.; Eimer, Joseph; Espinoza, Francisco; Essinger-Hileman, Thomas; Helson, Kyle; Iuliano, Jeffrey; Marriage, Tobias A.; Morales Peréz, Carolina; Nunes Valle, Deniz Augusto; Petroff, Matthew A.; Rostem, Karwan; Shi, Rui; Watts, Duncan; Wollack, Edward J.; Xu, Zhilei (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2022)
    The Cosmology Large Angular Scale Surveyor (CLASS) is a polarization-sensitive telescope array located at an altitude of 5,200 m in the Chilean Atacama Desert. CLASS is designed to measure “E-mode” (even parity) and “B-mode” ...
  • Four-year Cosmology Large Angular Scale Surveyor (CLASS) Observations: On-sky Receiver Performance at 40, 90, 150, and 220 GHz Frequency Bands 
    Dahal, Sumit; Appel, John W.; Datta, Rahul; Brewer, Michael K.; Ali, Aamir; Bennett, Charles L.; Bustos, Ricardo; Chan, Manwei; Chuss, David T.; Cleary, Joseph; Couto, Jullianna D.; Denis, Kevin L.; Dünner, Rolando; Eimer, Joseph; Espinoza, Francisco; Essinger-Hileman, Thomas; Golec, Joseph E.; Harrington, Kathleen; Helson, Kyle; Iuliano, Jeffrey; Karakla, John; Li, Yunyang; Marriage, Tobias A.; McMahon, Jeffrey J.; Miller, Nathan J.; Novack, Sasha; Núñez, Carolina; Osumi, Keisuke; Padilla, Ivan L.; Palma, Gonzalo A.; Parker, Lucas; Petroff, Matthew A.; Reeves, Rodrigo; Rhoades, Gary; Rostem, Karwan; Valle, Deniz A. N.; Watts, Duncan; Weiland, Janet L.; Wollack, Edward J.; Xu, Zhilei (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
  • Long-timescale stability in CMB observations at multiple frequencies using front-end polarization modulation 
    Cleary, Joseph; Datta, Rahul; Appel, John W.; Bennett, Charles L.; Chuss, David T.; Couto, Jullianna Denes; Dahal, Sumit; Espinoza, Francisco; Essinger-Hileman, Thomas; Harrington, Kathleen; Iuliano, Jeffrey; Li, Yunyang; Marriage, Tobias A.; Núñez, Carolina; Petroff, Matthew A.; Reeves, Rodrigo; Shi, Rui; Watts, Duncan; Wollack, Edward J.; Xu, Zhilei (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2022)
    The Cosmology Large Angular Scale Surveyor (CLASS) is a telescope array observing the Cosmic Microwave Background (CMB) at frequency bands centered near 40, 90, 150, and 220 GHz. CLASS measures the CMB polarization on the ...
  • Microwave Observations of Venus with CLASS 
    Dahal, Sumit; Brewer, Michael K.; Akins, Alex B.; Appel, John W.; Bennett, Charles L.; Bustos, Ricardo; Cleary, Joseph; Couto, Jullianna D.; Datta, Rahul; Eimer, Joseph; Essinger-Hileman, Thomas; Iuliano, Jeffrey; Li, Yunyang; Marriage, Tobias A.; Núñez, Carolina; Petroff, Matthew A.; Reeves, Rodrigo; Rostem, Karwan; Shi, Rui; Valle, Deniz A. N.; Watts, Duncan; Weiland, Janet L.; Wollack, Edward J.; Xu, Zhilei (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract We report on the disk-averaged absolute brightness temperatures of Venus measured at four microwave frequency bands with the Cosmology Large Angular Scale Surveyor. We measure temperatures of 432.3 ± ...
  • The Simons Observatory: Beam Characterization for the Small Aperture Telescopes 
    Dachlythra, Nadia; Duivenvoorden, Adriaan J.; Gudmundsson, Jon E.; Hasselfield, Matthew; Coppi, Gabriele; Adler, Alexandre E.; Alonso, David; Azzoni, Susanna; Chesmore, Grace E.; Fabbian, Giulio; Ganga, Ken; Gerras, Remington G.; Jaffe, Andrew H.; Johnson, Bradley R.; Keating, Brian; Keskitalo, Reijo; Kisner, Theodore S.; Krachmalnicoff, Nicoletta; Lungu, Marius; Matsuda, Frederick; Næss, Sigurd Kirkevold; Page, Lyman; Puddu, Roberto; Puglisi, Giuseppe; Simon, Sara M.; Teply, Grant; Tsan, Tran; Wollack, Edward J.; Wolz, Kevin; Xu, Zhilei (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
    Abstract We use time-domain simulations of Jupiter observations to test and develop a beam reconstruction pipeline for the Simons Observatory Small Aperture Telescopes. The method relies on a mapmaker that estimates ...
  • Venus Observations at 40 and 90 GHz with CLASS 
    Dahal, Sumit; Brewer, Michael K.; Appel, John W.; Ali, Aamir; Bennett, Charles L.; Bustos, Ricardo; Chan, Manwei; Chuss, David T.; Cleary, Joseph; Couto, Jullianna Denes; Datta, Rahul; Denis, Kevin L.; Eimer, Joseph; Espinoza, Francisco; Essinger-Hileman, Thomas; Gothe, Dominik; Harrington, Kathleen; Iuliano, Jeffrey; Karakla, John; Marriage, Tobias A.; Novack, Sasha; Núñez, Carolina; Padilla, Ivan L.; Parker, Lucas; Petroff, Matthew A.; Reeves, Rodrigo; Rhoades, Gary; Rostem, Karwan; Valle, Deniz A. N.; Watts, Duncan; Weiland, Janet L.; Wollack, Edward J.; Xu, Zhilei (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Abstract Using the Cosmology Large Angular Scale Surveyor, we measure the disk-averaged absolute Venus brightness temperature to be 432.3 ± 2.8 K and 355.6 ± 1.3 K in the Q and W frequency bands centered at 38.8 ...