Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Denes, Helga"'
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
Autor:
Dempsey, James, McClure-Griffiths, N. M., Murray, Claire, Dickey, John M., Pingel, Nickolas M., Jameson, Katherine, Dénes, Helga, van Loon, Jacco Th., Leahy, D., Lee, Min-Young, Stanimirović, S., Breen, Shari, Buckland-Willis, Frances, Gibson, Steven J., Imai, Hiroshi, Lynn, Callum, Tremblay, C. D.
We present the first unbiased survey of neutral hydrogen (HI) absorption in the Small Magellanic Cloud (SMC). The survey utilises pilot HI observations with the Australian Square Kilometre Array Pathfinder (ASKAP) telescope as part of the Galactic AS
Externí odkaz:
http://arxiv.org/abs/2204.06285
Autor:
Morganti, Raffaella, Jurlin, Nika, Oosterloo, Tom, Brienza, Marisa, Orru', Emanuela, Kutkin, Alexander, Prandoni, Isabella, Adams, Elizabeth A. K., Denes, Helga, Hess, Kelley M., Shulevski, Aleksandar, van der Hulst, Thijs, Ziemke, Jacob
Active galactic nuclei (AGN) at the centres of galaxies can cycle between periods of activity and of quiescence. Characterising the duty-cycle of AGN is crucial for understanding their impact on the evolution of the host galaxy. For radio AGN, their
Externí odkaz:
http://arxiv.org/abs/2111.04776
Autor:
Pastor-Marazuela, Inés, Connor, Liam, van Leeuwen, Joeri, Maan, Yogesh, ter Veen, Sander, Bilous, Anna, Oostrum, Leon, Petroff, Emily, Straal, Samayra, Vohl, Dany, Attema, Jisk, Boersma, Oliver M., Kooistra, Eric, van der Schuur, Daniel, Sclocco, Alessio, Smits, Roy, Adams, Elizabeth A. K., Adebahr, Björn, de Blok, Willem J. G., Coolen, Arthur H. W. M., Damstra, Sieds, Dénes, Helga, Hess, Kelley M., van der Hulst, Thijs, Hut, Boudewijn, Ivashina, V. Marianna, Kutkin, Alexander, Loose, G. Marcel, Lucero, Danielle M., Mika, Ágnes, Moss, Vanessa A., Mulder, Henk, Norden, Menno J., Oosterloo, Tom, Orrú, Emanuela, Ruiter, Mark, Wijnholds, Stefan J.
Fast radio bursts (FRBs) are extragalactic astrophysical transients whose brightness requires emitters that are highly energetic, yet compact enough to produce the short, millisecond-duration bursts. FRBs have thus far been detected between 300 MHz a
Externí odkaz:
http://arxiv.org/abs/2012.08348