Zobrazeno 1 - 10
of 169
pro vyhledávání: '"Hill, Alex. S."'
Observations of the Milky Way and external galaxies support the idea that large-scale magnetic fields are concentrated in galactic disks, with halo magnetic fields at least an order of magnitude weaker. However, very little is known about the transit
Externí odkaz:
http://arxiv.org/abs/2411.08978
Autor:
Amiri, Mandana, Chakraborty, Arnab, Foreman, Simon, Halpern, Mark, Hill, Alex S, Hinshaw, Gary, Landecker, T. L., MacEachern, Joshua, Masui, Kiyoshi W., Mena-Parra, Juan, Milutinovic, Nikola, Newburgh, Laura, Ordog, Anna, Pen, Ue-Li, Pinsonneault-Marotte, Tristan, Reda, Alex, Siegel, Seth R., Singh, Saurabh, Wang, Haochen, Wulf, Dallas
We present the first results of the holographic beam mapping program for the Canadian Hydrogen Intensity Mapping Experiment (CHIME). We describe the implementation of the holographic technique as adapted for CHIME, and introduce the processing pipeli
Externí odkaz:
http://arxiv.org/abs/2408.00172
Autor:
Mohammed, Nasser, Ordog, Anna, Booth, Rebecca A., Bracco, Andrea, Brown, Jo-Anne C., Carretti, Ettore, Dickey, John M., Foreman, Simon, Halpern, Mark, Haverkorn, Marijke, Hill, Alex S., Hinshaw, Gary, Kania, Joseph W, Kothes, Roland, Landecker, T. L., MacEachern, Joshua, Masui, Kiyoshi W., Menard, Aimee, Ransom, Ryan R., Reich, Wolfgang, Reich, Patricia, Shaw, J. Richard, Siegel, Seth R., Tahani, Mehrnoosh, Thomson, Alec J. M., Pinsonneault-Marotte, Tristan, Wang, Haochen, West, Jennifer L., Wolleben, Maik, Wulf, Dallas
A direct consequence of Faraday rotation is that the polarized radio sky does not resemble the total intensity sky at long wavelengths. We analyze G137+7, which is undetectable in total intensity but appears as a depolarization feature. We use the fi
Externí odkaz:
http://arxiv.org/abs/2405.15678
Autor:
CHIME Collaboration, Amiri, Mandana, Bandura, Kevin, Chakraborty, Arnab, Dobbs, Matt, Fandino, Mateus, Foreman, Simon, Gan, Hyoyin, Halpern, Mark, Hill, Alex S., Hinshaw, Gary, Höfer, Carolin, Landecker, T. L., Li, Zack, MacEachern, Joshua, Masui, Kiyoshi, Mena-Parra, Juan, Milutinovic, Nikola, Mirhosseini, Arash, Newburgh, Laura, Ordog, Anna, Paul, Sourabh, Pen, Ue-Li, Pinsonneault-Marotte, Tristan, Reda, Alex, Shaw, J. Richard, Siegel, Seth R., Vanderlinde, Keith, Wang, Haochen, Wiebe, D. V., Wulf, Dallas
We report the detection of 21 cm emission at an average redshift $\bar{z} = 2.3$ in the cross-correlation of data from the Canadian Hydrogen Intensity Mapping Experiment (CHIME) with measurements of the Lyman-$\alpha$ forest from eBOSS. Data collecte
Externí odkaz:
http://arxiv.org/abs/2309.04404
Autor:
Lin, Hsiu-Hsien, Scholz, Paul, Ng, Cherry, Pen, Ue-Li, Bhardwaj, Mohit, Chawla, Pragya, Curtin, Alice P., Li, Dongzi, Newburgh, Laura, Reda, Alex, Sand, Ketan R., Tendulkar, Shriharsh P., Andersen, Bridget, Bandura, Kevin, Brar, Charanjot, Cassanelli, Tomas, Cook, Amanda M., Dobbs, Matt, Dong, Fengqiu Adam, Eadie, Gwendolyn, Fonseca, Emmanuel, Gaensler, Bryan M., Giri, Utkarsh, Herrera-Martin, Antonio, Hill, Alex S., Kaczmarek, Jane, Kania, Joseph, Kaspi, Victoria, Khairy, Kholoud, Lanman, Adam E., Leung, Calvin, Masui, Kiyoshi W., Mena-Parra, Juan, Meyers, Bradley W., Michilli, Daniele, Milutinovic, Nikola, Ordog, Anna, Pearlman, Aaron B., Pleunis, Ziggy, Rafiei-Ravandi, Masoud, Rahman, Mubdi, Ransom, Scott, Sanghavi, Pranav, Shin, Kaitlyn, Smith, Kendrick, Stairs, Ingrid, Stenning, David C., Vanderlinde, Keith, Wulf, Dallas
We report ten fast radio bursts (FRBs) detected in the far side-lobe region (i.e., $\geq 5^\circ$ off-meridian) of the Canadian Hydrogen Intensity Mapping Experiment (CHIME) from 2018 August 28 to 2021 August 31. We localize the bursts by fitting the
Externí odkaz:
http://arxiv.org/abs/2307.05261
Autor:
Lin, Hsiu-Hsien, Scholz, Paul, Ng, Cherry, Pen, Ue-Li, Li, D. Z., Newburgh, Laura, Reda, Alex, Andersen, Bridget, Bandura, Kevin, Bhardwaj, Mohit, Brar, Charanjot, Cassanelli, Tomas, Chawla, Pragya, Cook, Amanda M., Curtin, Alice P., Dobbs, Matt, Dong, Fengqiu Adam, Fonseca, Emmanuel, Gaensler, Bryan M., Giri, Utkarsh, Hill, Alex S., Kaczmarek, Jane, Kania, Joseph, Kaspi, Victoria, Khairy, Kholoud, Leung, Calvin, Masui, Kiyoshi W., Mena-Parra, Juan, Meyers, Bradley W., Ordog, Anna, Pearlman, Aaron B., Pleunis, Ziggy, Rafiei-Ravandi, Masoud, Rahman, Mubdi, Ransom, Scott, Sand, Ketan R., Sanghavi, Pranav, Shin, Kaitlyn, Smith, Kendrick, Stairs, Ingrid, Tendulkar, Shriharsh P., Vanderlinde, Keith, Wulf, Dallas
We study the 10 fast radio bursts (FRBs) detected in the far side-lobe region of the CHIME telescope from 2018 August 28 to 2021 August 31. We find that the far side-lobe events have on average $\sim$500 times greater fluxes than events detected in C
Externí odkaz:
http://arxiv.org/abs/2307.05262
Autor:
Jung, Seoyoung Lyla, McClure-Griffiths, N. M., Pakmor, Ruediger, Ma, Yik Ki, Hill, Alex S., Van Eck, Cameron L., Anderson, Craig S.
Faraday rotation measure (RM) is arguably the most practical observational tracer of magnetic fields in the diffuse circumgalactic medium (CGM). We sample synthetic Faraday rotation skies of Milky Way-like galaxies in TNG50 of the IllustrisTNG projec
Externí odkaz:
http://arxiv.org/abs/2307.05808
Autor:
Collaboration, The CHIME/FRB, Andersen, Bridget C., Bandura, Kevin, Bhardwaj, Mohit, Boyle, P. J., Brar, Charanjot, Cassanelli, Tomas, Chatterjee, S., Chawla, Pragya, Cook, Amanda M., Curtin, Alice P., Dobbs, Matt, Dong, Fengqiu Adam, Faber, Jakob T., Fandino, Mateus, Fonseca, Emmanuel, Gaensler, B. M., Giri, Utkarsh, Herrera-Martin, Antonio, Hill, Alex S., Ibik, Adaeze, Josephy, Alexander, Kaczmarek, Jane F., Kader, Zarif, Kaspi, Victoria, Landecker, T. L., Lanman, Adam E., Lazda, Mattias, Leung, Calvin, Lin, Hsiu-Hsien, Masui, Kiyoshi W., Mckinven, Ryan, Mena-Parra, Juan, Meyers, Bradley W., Michilli, D., Ng, Cherry, Pandhi, Ayush, Pearlman, Aaron B., Pen, Ue-Li, Petroff, Emily, Pleunis, Ziggy, Rafiei-Ravandi, Masoud, Rahman, Mubdi, Ransom, Scott M., Renard, Andre, Sand, Ketan R., Sanghavi, Pranav, Scholz, Paul, Shah, Vishwangi, Shin, Kaitlyn, Siegel, Seth, Smith, Kendrick, Stairs, Ingrid, Su, Jianing, Tendulkar, Shriharsh P., Vanderlinde, Keith, Wang, Haochen, Wulf, Dallas, Zwaniga, Andrew
We present the discovery of 25 new repeating fast radio burst (FRB) sources found among CHIME/FRB events detected between 2019 September 30 and 2021 May 1. The sources were found using a new clustering algorithm that looks for multiple events co-loca
Externí odkaz:
http://arxiv.org/abs/2301.08762
Autor:
Cook, Amanda M., Bhardwaj, Mohit, Gaensler, B. M., Scholz, Paul, Eadie, Gwendolyn M., Hill, Alex S., Kaspi, Victoria M., Masui, Kiyoshi W., Curtin, Alice P., Dong, Fengqiu Adam, Fonseca, Emmanuel, Herrera-Martin, Antonio, Kaczmarek, Jane, Lanman, Adam E., Lazda, Mattias, Leung, Calvin, Meyers, Bradley W., Michilli, Daniele, Pandhi, Ayush, Pearlman, Aaron B., Pleunis, Ziggy, Ransom, Scott, Rahman, Mubdi, Sand, Ketan R., Shin, Kaitlyn, Smith, Kendrick, Stairs, Ingrid, Stenning, David C.
The CHIME/FRB project has detected hundreds of fast radio bursts (FRBs), providing an unparalleled population to probe statistically the foreground media that they illuminate. One such foreground medium is the ionized halo of the Milky Way (MW). We e
Externí odkaz:
http://arxiv.org/abs/2301.03502
Autor:
Reda, Alex, Pinsonneault-Marotte, Tristan, Deng, Meiling, Amiri, Mandana, Bandura, Kevin, Chakraborty, Arnab, Foreman, Simon, Halpern, Mark, Hill, Alex S., Höfer, Carolin, Kania, Joseph, Landecker, T. L., MacEachern, Joshua, Masui, Kiyoshi, Mena-Parra, Juan, Milutinovic, Nikola, Newburgh, Laura, Ordog, Anna, Paul, Sourabh, Shaw, J. Richard, Siegel, Seth R., Smegal, Rick, Wang, Haochen, Wulf, Dallas
The Canadian Hydrogen Intensity Mapping Experiment (CHIME) will measure the 21 cm emission of astrophysical neutral hydrogen to probe large scale structure at redshifts z=0.8-2.5. However, detecting the 21 cm signal beneath substantially brighter for
Externí odkaz:
http://arxiv.org/abs/2207.13876