Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Sekhar, Srikrishna"'
Autor:
Eibensteiner, Cosima, Sun, Jiayi, Bigiel, Frank, Leroy, Adam K., Schinnerer, Eva, Rosolowsky, Erik, Kurapati, Sushma, Pisano, D. J., de Blok, W. J. G, Barnes, Ashley T., Thorp, Mallory, Colombo, Dario, Koch, Eric W., Chiang, I-Da, Ostriker, Eve C., Murphy, Eric J., Zabel, Nikki, Laudage, Sebstian, Maccagni, Filippo M., Healy, Julia, Sekhar, Srikrishna, Utomo, Dyas, Brok, Jakob den, Cao, Yixian, Chevance, Mélanie, Dale, Daniel A., Faesi, Christopher M., Glover, Simon C. O., He, Hao, Jeffreson, Sarah, Jiménez-Donaire, María J., Klessen, Ralf, Neumann, Justus, Pan, Hsi-An, Pathak, Debosmita, Querejeta, Miguel, Teng, Yu-Hsuan, Usero, Antonio, Williams, Thomas G.
The molecular-to-atomic gas ratio is crucial to the evolution of the interstellar medium in galaxies. We investigate the balance between the atomic ($\Sigma_{\rm HI}$) and molecular gas ($\Sigma_{\rm H2}$) surface densities in eight nearby star-formi
Externí odkaz:
http://arxiv.org/abs/2407.01716
Autor:
Sinigaglia, Francesco, Rodighiero, Giulia, Elson, Ed, Bianchetti, Alessandro, Vaccari, Mattia, Maddox, Natasha, Ponomareva, Anastasia A., Frank, Bradley S., Jarvis, Matt J., Catinella, Barbara, Cortese, Luca, Roychowdhury, Sambit, Baes, Maarten, Collier, Jordan D., Ilbert, Olivier, Khostovan, Ali A., Kurapati, Sushma, Pan, Hengxing, Prandoni, Isabella, Rajohnson, Sambatriniaina H. A., Salvato, Mara, Sekhar, Srikrishna, Sharma, Gauri
We present the first measurement of HI mass of star-forming galaxies in different large scale structure environments from a blind survey at $z\sim 0.37$. In particular, we carry out a spectral line stacking analysis considering $2875$ spectra of colo
Externí odkaz:
http://arxiv.org/abs/2403.00734
Autor:
Ponomareva, Anastasia A., Jarvis, Matt J., Pan, Hengxing, Maddox, Natasha, Jones, Michael G., Frank, Bradley S., Rajohnson, Sambatriniaina H. A., Mulaudzi, Wanga, Meyer, Martin, Adams, Elizabeth A. K., Baes, Maarten, Hess, Kelley M., Kurapati, Sushma, Prandoni, Isabella, Sinigaglia, Francesco, Spekkens, Kristine, Tudorache, Madalina, Heywood, Ian, Collier, Jordan D., Sekhar, Srikrishna
We present the first measurement of the HI mass function (HIMF) using data from MeerKAT, based on 276 direct detections from the MIGHTEE Survey Early Science data covering a period of approximately a billion years ($0 \leq z \leq 0.084 $). This is th
Externí odkaz:
http://arxiv.org/abs/2304.13051
Autor:
Pan, Hengxing, Jarvis, Matt J., Santos, Mario G., Maddox, Natasha, Frank, Bradley S., Ponomareva, Anastasia A., Prandoni, Isabella, Kurapati, Sushma, Baes, Maarten, Piña, Pavel E. Mancera, Rodighiero, Giulia, Meyer, Martin J., Davé, Romeel, Sharma, Gauri, Rajohnson, Sambatriniaina H. A., Adams, Nathan J., Bowler, Rebecca A. A., Sinigaglia, Francesco, van der Hulst, Thijs, Hatfield, Peter W., Sekhar, Srikrishna, Collier, Jordan D.
We study the $M_{\rm HI}-M_{\star}$ relation over the last billion years using the MIGHTEE-HI sample. We first model the upper envelope of the $M_{\rm HI}-M_{\star}$ relation with a Bayesian technique applied to a total number of 249 HI-selected gala
Externí odkaz:
http://arxiv.org/abs/2210.04651
Autor:
THE CASA TEAM, Bean, Ben, Bhatnagar, Sanjay, Castro, Sandra, Meyer, Jennifer Donovan, Emonts, Bjorn, Garcia, Enrique, Garwood, Robert, Golap, Kumar, Villalba, Justo Gonzalez, Harris, Pamela, Hayashi, Yohei, Hoskins, Josh, Hsieh, Mingyu, Jagannathan, Preshanth, Kawasaki, Wataru, Keimpema, Aard, Kettenis, Mark, Lopez, Jorge, Marvil, Joshua, Masters, Joseph, McNichols, Andrew, Mehringer, David, Miel, Renaud, Moellenbrock, George, Montesino, Federico, Nakazato, Takeshi, Ott, Juergen, Petry, Dirk, Pokorny, Martin, Raba, Ryan, Rau, Urvashi, Schiebel, Darrell, Schweighart, Neal, Sekhar, Srikrishna, Shimada, Kazuhiko, Small, Des, Steeb, Jan-Willem, Sugimoto, Kanako, Suoranta, Ville, Tsutsumi, Takahiro, van Bemmel, Ilse M., Verkouter, Marjolein, Wells, Akeem, Xiong, Wei, Szomoru, Arpad, Griffith, Morgan, Glendenning, Brian, Kern, Jeff
CASA, the Common Astronomy Software Applications, is the primary data processing software for the Atacama Large Millimeter/submillimeter Array (ALMA) and the Karl G. Jansky Very Large Array (VLA), and is frequently used also for other radio telescope
Externí odkaz:
http://arxiv.org/abs/2210.02276
Autor:
Sinigaglia, Francesco, Rodighiero, Giulia, Elson, Ed, Vaccari, Mattia, Maddox, Natasha, Frank, Bradley S., Jarvis, Matt J., Oosterloo, Tom, Davé, Romeel, Salvato, Mara, Baes, Maarten, Bellstedt, Sabine, Bisigello, Laura, Collier, Jordan D., Cook, Robin H. W., Davies, Luke J. M., Delhaize, Jacinta, Driver, Simon P., Foster, Caroline, Kurapati, Sushma, Lagos, Claudia del P., Lidman, Christopher, Piña, Pavel E. Mancera, Meyer, Martin J., Mogotsi, K. Moses, Pan, Hengxing, Ponomareva, Anastasia A., Prandoni, Isabella, Rajohnson, Sambatriniaina H. A., Robotham, Aaron S. G., Santos, Mario G., Sekhar, Srikrishna, Spekkens, Kristine, Thorne, Jessica E., van der Hulst, Jan M., Wong, O. Ivy
We present the first measurements of HI galaxy scaling relations from a blind survey at $z>0.15$. We perform spectral stacking of 9023 spectra of star-forming galaxies undetected in HI at $0.23
Externí odkaz:
http://arxiv.org/abs/2208.01121
Autor:
Cárcamo, Miguel, Scaife, Anna, Taylor, Russ, Jarvis, Matt, Bowles, Micah, Sekhar, Srikrishna, Heino, Lennart, Stil, Jeroen
In this work we present a novel compute framework for reconstructing Faraday depth signals from noisy and incomplete spectro-polarimetric radio datasets. This framework is based on a compressed-sensing approach that addresses a number of outstanding
Externí odkaz:
http://arxiv.org/abs/2206.03283
Autor:
Norris, Ray P., Collier, J. D., Crocker, Roland M., Heywood, Ian, Macgregor, Peter, Rudnick, L., Shabala, Stas, Andernach, Heinz, da Cunha, Elisabete, English, Jayanne, Filipovic, Miroslav, Koribalski, Baaerbel S., Luken, Kieran, Robotham, Aaron, Sekhar, Srikrishna, Thorne, Jessica E., Vernstrom, Tessa
Odd Radio Circles (ORCs) are recently-discovered faint diffuse circles of radio emission, of unknown cause, surrounding galaxies at moderate redshift ($z ~ 0.2-0.6). Here we present detailed new MeerKAT radio images at 1284 MHz of the first ORC, orig
Externí odkaz:
http://arxiv.org/abs/2203.10669
Autor:
Rajohnson, Sambatriniaina H. A., Frank, Bradley S., Ponomareva, Anastasia A., Maddox, Natasha, Kraan-Korteweg, Renée C., Jarvis, Matt J., Adams, Elizabeth A. K., Oosterloo, Tom, Baes, Maarten, Spekkens, Kristine, Adams, Nathan J., Glowacki, Marcin, Kurapati, Sushma, Prandoni, Isabella, Heywood, Ian, Collier, Jordan D., Sekhar, Srikrishna, Taylor, Russ
We present the observed HI size-mass relation of $204$ galaxies from the MIGHTEE Survey Early Science data. The high sensitivity of MeerKAT allows us to detect galaxies spanning more than 4 orders of magnitude in HI mass, ranging from dwarf galaxies
Externí odkaz:
http://arxiv.org/abs/2203.06149
Autor:
Ponomareva, Anastasia A., Mulaudzi, Wanga, Maddox, Natasha, Frank, Bradley S., Jarvis, Matt J., Di Teodoro, Enrico M., Glowacki, Marcin, Kraan-Korteweg, Renée C., Oosterloo, Tom A., Adams, Elizabeth A. K., Pan, Hengxing, Prandoni, Isabella, Rajohnson, Sambatriniaina H. A., Sinigaglia, Francesco, Adams, Nathan J., Heywood, Ian, Bowler, Rebecca A. A., Hatfield, Peter W., Collier, Jordan D., Sekhar, Srikrishna
Using a sample of 67 galaxies from the MIGHTEE Survey Early Science data we study the HI-based baryonic Tully-Fisher relation (bTFr), covering a period of $\sim$one billion years ($0 \leq z \leq 0.081 $). We consider the bTFr based on two different r
Externí odkaz:
http://arxiv.org/abs/2109.04992