Zobrazeno 1 - 10
of 173
pro vyhledávání: '"Heywood, Ian"'
Cold gas evolution ties the formation of dark matter halos to the star formation history of the universe. A primary component of cold gas, neutral atomic hydrogen (HI), can be traced by its 21-cm emission line. However, the faintness of this emission
Externí odkaz:
http://arxiv.org/abs/2407.08321
Autor:
Schoedel, Rainer, Alberdi, Antxon, Jimenez-Serra, Izaskun, Yusef-Zadeh, Farhad, Gardini, Angela, Kramer, Michael, Torres, Miguel Perez, Morris, Mark R., Forbrich, Jan, Ingallinera, Adriano, Nogueras-Lara, Francisco, Henshaw, Jonathan D., Longmore, Steven N., Moldon, Javier, Heywood, Ian, Rammala, Isabella, Montenegro, Lourdes Verdes, Exposito, Susana Sanchez
With its extreme density of stars and stellar remnants, dense young massive clusters, high specific star formation rate, intense radiation field, high magnetic field strength, and properties of the interstellar medium that resemble those in high reds
Externí odkaz:
http://arxiv.org/abs/2406.04022
Autor:
Jarvis, Matt J., Heywood, Ian, Jewell, Sophie M., Deane, Roger P., Klöckner, H. -R., Ponomareva, Anastasia A., Maddox, Natasha, Baker, Andrew J., Bianchetti, Alessandro, Hess, Kelley M., Roberts, Hayley, Rodighiero, Giulia, Ruffa, Ilaria, Sinigaglia, Francesco, Varadaraj, R. G., Whittam, I. H., Adams, Elizabeth A. K., Baes, Maarten, Murphy, Eric J., Pan, Hengxing, Vaccari, Mattia
We present the discovery of the most distant OH megamaser to be observed in the main lines, using data from the MeerKAT International Giga-Hertz Tiered Extragalactic Exploration (MIGHTEE) survey. At a newly measured redshift of $z = 0.7092$, the syst
Externí odkaz:
http://arxiv.org/abs/2312.04345
Autor:
Schroeder, Genevieve, Rhodes, Lauren, Laskar, Tanmoy, Nugent, Anya, Escorial, Alicia Rouco, Rastinejad, Jillian C., Fong, Wen-fai, van der Horst, Alexander J., Veres, Péter, Alexander, Kate D., Andersson, Alex, Berger, Edo, Blanchard, Peter K., Chastain, Sarah, Christensen, Lise, Fender, Rob, Green, David A., Groot, Paul, Heywood, Ian, Horesh, Assaf, Izzo, Luca, Kilpatrick, Charles D., Körding, Elmar, Lien, Amy, Malesani, Daniele B., McBride, Vanessa, Mooley, Kunal, Rowlinson, Antonia, Sears, Huei, Stappers, Ben, Tanvir, Nial, Vergani, Susanna D., Wijers, Ralph A. M. J., Williams-Baldwin, David, Woudt, Patrick
We present the discovery of the radio afterglow of the short $\gamma$-ray burst (GRB) 210726A, localized to a galaxy at a photometric redshift of $z\sim 2.4$. While radio observations commenced $\lesssim 1~$day after the burst, no radio emission was
Externí odkaz:
http://arxiv.org/abs/2308.10936
Autor:
Heywood, Ian
MeerKAT imaging of the globular cluster 47 Tucanae (47 Tuc) reveals 1.28 GHz continuum emission at the locations of 20 known millisecond pulsars (MSPs). We use time series and spectral imaging to investigate the image-domain characteristics of the MS
Externí odkaz:
http://arxiv.org/abs/2307.02077
Autor:
Andersson, Alex, Lintott, Chris, Fender, Rob, Bright, Joe, Carotenuto, Francesco, Driessen, Laura, Espinasse, Mathilde, Gaseahalwe, Kelebogile, Heywood, Ian, van der Horst, Alexander J., Motta, Sara, Rhodes, Lauren, Tremou, Evangelia, Williams, David R. A., Woudt, Patrick, Zhang, Xian, Bloemen, Steven, Groot, Paul, Vreeswijk, Paul, Giarratana, Stefano, Saikia, Payaswini, Andersson, Jonas, Arroyo, Lizzeth Ruiz, Baert, Loïc, Baumann, Matthew, Domainko, Wilfried, Eschweiler, Thorsten, Forsythe, Tim, Gaudenzi, Sauro, Grenier, Rachel Ann, Iannone, Davide, Lahoz, Karla, Melville, Kyle J., Nascimento, Marianne De Sousa, Navarro, Leticia, Parthasarathi, Sai, Piilonen, Rahman, Najma, Smith, Jeffrey, Stewart, B., Temoke, Newton, Tworek, Chloe, Whittle, Isabelle
The newest generation of radio telescopes are able to survey large areas with high sensitivity and cadence, producing data volumes that require new methods to better understand the transient sky. Here we describe the results from the first citizen sc
Externí odkaz:
http://arxiv.org/abs/2304.14157
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:
Koribalski, Bärbel S., Veronica, Angie, Dolag, Klaus, Reiprich, Thomas H., Brüggen, Marcus, Heywood, Ian, Andernach, Heinz, Dettmar, Ralf-Jürgen, Hoeft, Matthias, Zhang, Xiaoyuan, Bulbul, Esra, Garrel, Christian, Józsa, Gyula I. G., English, Jayanne
We present the serendipitous discovery of (1) a large double radio relic associated with the galaxy cluster PSZ2 G277.93+12.34 and (2) a new odd radio circle, ORC J1027-4422, both found in the same deep MeerKAT 1.3 GHz wide-band radio continuum image
Externí odkaz:
http://arxiv.org/abs/2304.11784
Autor:
Bright, Joe S., Rhodes, Lauren, Farah, Wael, Fender, Rob, van der Horst, Alexander J., Leung, James K., Williams, David R. A., Anderson, Gemma E., Atri, Pikky, DeBoer, David R., Giarratana, Stefano, Green, David A., Heywood, Ian, Lenc, Emil, Murphy, Tara, Pollak, Alexander W., Premnath, Pranav H., Scott, Paul F., Sheikh, Sofia Z., Siemion, Andrew, Titterington, David J.
The deaths of massive stars are sometimes accompanied by the launch of highly relativistic and collimated jets. If the jet is pointed towards Earth, we observe a "prompt" gamma-ray burst due to internal shocks or magnetic reconnection events within t
Externí odkaz:
http://arxiv.org/abs/2303.13583
Autor:
Namumba, Brenda, Román, Javier, Barroso, Jesus Falcon, Knapen, Johan H., Roger, Ianjamasimanana, Naluminsa, Elizabeth, Jozsa, Gyula I. G., Korsaga, Marie, Maddox, Natasha, Frank, Brad, Sikhosana, Sinenhlanhla, Legodi, Samuel, Carignan, Claude, Ponomareva, Anastasia A., Jarrett, Tom, Lucero, Danielle, Smirnov, Oleg M., van der Hulst, Thijs, Pisano, D. J., Malek, kasia, Marchetti, Lucia, Vaccari, Mattia, Jarvis, Matt, Baes, Maarten, Meyer, Martin, Adams, Elizabeth A. K., Delhaize, Jacinta, Chen, Hao, Rajohnson, Sambatriniaina, Kurapati, Sushma, Heywood, Ian, Verdes-Montenegro, Lourdes
The transformation and evolution of a galaxy is strongly influenced by interactions with its environment. Neutral hydrogen (\HI) is an excellent way to trace these interactions. Here, we present \HI\ observations of the spiral galaxy NGC~895, which w
Externí odkaz:
http://arxiv.org/abs/2303.09371