Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Dénes, Helga"'
Autor:
Nguyen, Hiep, McClure-Griffiths, N. M., Dempsey, James, Dickey, John M., Lee, Min-Young, Lynn, Callum, Murray, Claire E., Stanimirović, Snežana, Busch, Michael P., Clark, Susan E., Dawson, J. R., Dénes, Helga, Gibson, Steven, Jameson, Katherine, Joncas, Gilles, Kemp, Ian, Leahy, Denis, Ma, Yik Ki, Marchal, Antoine, Miville-Deschênes, Marc-Antoine, Pingel, Nickolas M., Seta, Amit, Soler, Juan D., van Loon, Jacco Th.
Publikováno v:
MNRAS 2024
We present the largest Galactic neutral hydrogen HI absorption survey to date, utilizing the Australian SKA Pathfinder Telescope at an unprecedented spatial resolution of 30''. This survey, GASKAP-HI, unbiasedly targets 2,714 continuum background sou
Externí odkaz:
http://arxiv.org/abs/2409.20311
Autor:
Šiljeg, Barbara, Adams, Elizabeth A. K., Fraternali, Filippo, Hess, Kelley M., Oosterloo, Tom A., Marasco, Antonino, Adebahr, Björn, Dénes, Helga, Lucero, Danielle M., Piña, Pavel E. Mancera, Moss, Vanessa A., Ponomareva, Anastasia A., van der Hulst, J. M.
Context. Understanding the dwarf galaxy population in low density environments is crucial for testing the LCDM cosmological model. The increase in diversity towards low mass galaxies is seen as an increase in the scatter of scaling relations such as
Externí odkaz:
http://arxiv.org/abs/2409.18825
Autor:
Wang, Li, Wong, O. Ivy, Westmeier, Tobias, Murugeshan, Chandrashekar, Lee-Waddell, Karen, Cai, Yuanzhi., Liu, Xiu., Shen, Austin Xiaofan, Rhee, Jonghwan, Dénes, Helga, Deg, Nathan, Kamphuis, Peter, Catinella, Barbara
The data volumes generated by the WALLABY atomic Hydrogen (HI) survey using the Australiian Square Kilometre Array Pathfinder (ASKAP) necessitate greater automation and reliable automation in the task of source-finding and cataloguing. To this end, w
Externí odkaz:
http://arxiv.org/abs/2409.11668
Autor:
Mould, Jeremy, Jarrett, T. H., Courtois, Hélène, Bosma, Albert, Deg, Nathan, Dupuy, Alexandra, Staveley-Smith, Lister, Taylor, E. N., English, Jayanne, Rajohnson, S. H. A., Kraan-Korteweg, Renée, Forbes, Duncan, Dénes, Helga, Lee-Waddell, Karen, Shen, Austin, Wong, O. I., Holwerda, Benne, Koribalski, Bärbel, Leahy, Denis, Piña, Pavel Mancera, Yu, Niankun
The Tully-Fisher Relation (TFR) is a well-known empirical relationship between the luminosity of a spiral galaxy and its circular velocity, allowing us to estimate redshift independent distances. Here we use high signal-to-noise HI 21-cm integrated s
Externí odkaz:
http://arxiv.org/abs/2406.10877
Autor:
Murray, Claire E., Hasselquist, Sten, Peek, Joshua E. G., Lindberg, Christina Willecke, Almeida, Andres, Choi, Yumi, Craig, Jessica E. M., Denes, Helga, Dickey, John M., Di Teodoro, Enrico M., Federrath, Christoph, Gerrard, Isabella A., Gibson, Steven J., Leahy, Denis, Lee, Min-Young, Lynn, Callum, Ma, Yik Ki, Marchal, Antoine, McClure-Griffiths, N. M., Nidever, David, Nguyen, Hiep, Pingel, Nickolas M., Tarantino, Elizabeth, Uscanga, Lucero, van Loon, Jacco Th.
The structure and dynamics of the star-forming disk of the Small Magellanic Cloud (SMC) have long confounded us. The SMC is widely used as a prototype for galactic physics at low metallicity, and yet we fundamentally lack an understanding of the stru
Externí odkaz:
http://arxiv.org/abs/2312.07750
Autor:
Gerrard, Isabella A., Federrath, Christoph, Pingel, Nickolas M., McClure-Griffiths, Naomi M., Marchal, Antoine, Joncas, Gilles, Clark, Susan E., Stanimirović, Snežana, Lee, Min-Young, van Loon, Jacco Th., Dickey, John, Dénes, Helga, Ma, Yik Ki, Dempsey, James, Lynn, Callum
Turbulence plays a crucial role in shaping the structure of the interstellar medium. The ratio of the three-dimensional density contrast ($\sigma_{\rho/\rho_0}$) to the turbulent sonic Mach number ($\mathcal{M}$) of an isothermal, compressible gas de
Externí odkaz:
http://arxiv.org/abs/2309.10755
Autor:
Holwerda, Benne W., Bigiel, Frank, Bosma, Albert, Courtois, Helene M., Deg, Nathan, Dénes, Helga, Elagali, Ahmed, For, Bi-Qing, Koribalski, Baerbel, Leahy, Denis A., Lee-Waddell, Karen, López-Sánchez, Ángel R., Oh, Se-Heon, Reynolds, Tristan N., Rhee, Jonghwan, Spekkens, Kristine, Wang, Jing, Westmeier, Tobias, Wong, O. Ivy
Galaxy morphology in atomic hydrogen (HI) and in the ultra-violet (UV) are closely linked. This has motivated their combined use to quantify morphology over the full H i disk for both H i and UV imaging. We apply galaxy morphometrics: Concentration,
Externí odkaz:
http://arxiv.org/abs/2302.07963
Autor:
Kim, Shin-Jeong, Oh, Se-Heon, Wang, Jing, Staveley-Smith, Lister, Koribalski, Bärbel S., Kim, Minsu, Park, Hye-Jin, Kim, Shinna, Spekkens, Kristine, Westmeier, Tobias, Wong, O. Ivy, Meurer, Gerhardt R., Kamphuis., Peter, Catinella, Barbara, McQuinn, Kristen B. W., Bigiel, Frank, Holwerda, Benne W., Rhee, Jonghwan, Lee-Waddell, Karen, Deg, Nathan, Verdes-Montenegro, Lourdes, For, Bi-Qing, Madrid, Juan P., Dénes, Helga, Elagali, Ahmed
We examine the HI gas kinematics of galaxy pairs in two clusters and a group using Australian Square Kilometre Array Pathfinder (ASKAP) WALLABY pilot survey observations. We compare the HI properties of galaxy pair candidates in the Hydra I and Norma
Externí odkaz:
http://arxiv.org/abs/2211.15123
Autor:
van Leeuwen, Joeri, Kooistra, Eric, Oostrum, Leon, Connor, Liam, Hargreaves, J. E., Maan, Yogesh, Pastor-Marazuela, Inés, Petroff, Emily, van der Schuur, Daniel, Sclocco, Alessio, Straal, Samayra M., Vohl, Dany, Wijnholds, Stefan J., Adams, Elizabeth A. K., Adebahr, Björn, Attema, Jisk, Bassa, Cees, Bast, Jeanette E., Bilous, Anna, de Blok, W. J. G., Boersma, Oliver M., van Cappellen, Wim A., Coolen, Arthur H. W. M., Damstra, Sieds, Dénes, Helga, van Diepen, Ger N. J., Gardenier, David W., Grange, Yan G., Gunst, André W., Hess, Kelley M., Holties, Hanno, van der Hulst, Thijs, Hut, Boudewijn, Kutkin, Alexander, Loose, G. Marcel, Lucero, Danielle M., Mika, Ágnes, Mikhailov, Klim, Morganti, Raffaella, Moss, Vanessa A., Mulder, Henk, Norden, Menno J., Oosterloo, Tom A., Orrú, Emaneula, Paragi, Zsolt, de Reijer, Jan-Pieter R., Schoenmakers, Arno P., Stuurwold, Klaas J. C., ter Veen, Sander, Wang, Yu-Yang, Zanting, Alwin W., Ziemke, Jacob
Publikováno v:
A&A 672, A117 (2023)
Fast Radio Bursts must be powered by uniquely energetic emission mechanisms. This requirement has eliminated a number of possible source types, but several remain. Identifying the physical nature of Fast Radio Burst (FRB) emitters arguably requires g
Externí odkaz:
http://arxiv.org/abs/2205.12362
We compare the properties of shocked gas in Sgr B2 with maps obtained from 3D simulations of a collision between two fractal clouds. In agreement with $^{13}$CO(1-0) observations, our simulations show that a cloud-cloud collision produces a region wi
Externí odkaz:
http://arxiv.org/abs/2204.12603