Zobrazeno 1 - 10
of 1 162
pro vyhledávání: '"Pillepich, A."'
Autor:
Joshi, Gandhali D., Pontzen, Andrew, Agertz, Oscar, Rey, Martin P., Read, Justin, Pillepich, Annalisa
The way in which mergers affect galaxy formation depends on both feedback processes, and on the geometry and strength of the mergers themselves. We introduce the PARADIGM project, where we study the response of a simulated Milky-Way-mass galaxy formi
Externí odkaz:
http://arxiv.org/abs/2407.00171
Autor:
Angeloudi, Eirini, Falcón-Barroso, Jesús, Huertas-Company, Marc, Boecker, Alina, Sarmiento, Regina, Eisert, Lukas, Pillepich, Annalisa
The hierarchical model of galaxy evolution suggests that the impact of mergers is substantial on the intricate processes that drive stellar assembly within a galaxy. However, accurately measuring the contribution of accretion to a galaxy's total stel
Externí odkaz:
http://arxiv.org/abs/2407.00166
Autor:
Rix, Hans-Walter, Chandra, Vedant, Zasowski, Gail, Pillepich, Annalisa, Khoperskov, Sergey, Feltzing, Sofia, Wyse, Rosemary F., Frankel, Neige, Horta, Danny, Kollmeier, Juna, Stassun, Keivan G., Ness, Melissa, Bird, Jonathan C., Nidever, David L., Fernandez, Jose G., Amarante, João A., Laporte, Chervin F., Lian, Jianhui
We show with Gaia XP spectroscopy that extremely metal-rich stars in the Milky Way (EMR; $[M/H]_{XP} > 0.5$) - but only those - are largely confined to a tight "knot" at the center of the Galaxy. This EMR knot is round in projection, has a fairly abr
Externí odkaz:
http://arxiv.org/abs/2406.01706
Autor:
Gebek, Andrea, Trčka, Ana, Baes, Maarten, Martorano, Marco, Pillepich, Annalisa, Kapoor, Anand Utsav, Nersesian, Angelos, van der Wel, Arjen
We apply the 3D dust radiative transfer code SKIRT to the low-redshift ($z\leq0.1$) galaxy population in the TNG100 cosmological simulation, the fiducial run of the IllustrisTNG project. We compute global fluxes and spectral energy distributions (SED
Externí odkaz:
http://arxiv.org/abs/2405.04925
Autor:
Forrest, Ben, Cooper, M. C., Muzzin, Adam, Wilson, Gillian, Marchesini, Danilo, McConachie, Ian, Gomez, Percy, Annunziatella, Marianna, Marsan, Z. Cemile, Braspenning, Joey, Chang, Wenjun, de Lucia, Gabriella, Fontanot, Fabio, Hirschmann, Michaela, Nelson, Dylan, Pillepich, Annalisa, Schaye, Joop, Stawinski, Stephanie M. Urbano, Stefanon, Mauro, Xie, Lizhi
We present rest-frame optical spectra from Keck/MOSFIRE and Keck/NIRES of 16 candidate ultramassive galaxies targeted as part of the Massive Ancient Galaxies at $z>3$ Near-Infrared (MAGAZ3NE) Survey. These candidates were selected to have photometric
Externí odkaz:
http://arxiv.org/abs/2404.19018
Autor:
Ding, Yuchen, Zhu, Ling, Pillepich, Annalisa, van de Ven, Glenn, Iodice, Enrichetta, Corsini, Enrico Maria, Pinna, Francesca
Publikováno v:
A&A 686, A184 (2024)
We studied the effects of cluster environments on galactic structures by using the TNG50 cosmological simulation and observed galaxies in the Fornax cluster. We focused on galaxies with stellar masses of $10^{8-12}M_{\odot}$ at z=0 that reside in For
Externí odkaz:
http://arxiv.org/abs/2404.01541
Whereas well-studied galaxies at cosmic noon are found to be baryon-dominated within the effective radius, recent JWST observations of $z\sim6-7$ galaxies with stellar masses of only $M_*\sim10^{8-9}\,{\rm M_\odot}$ surprisingly indicate that they ar
Externí odkaz:
http://arxiv.org/abs/2403.00907
Autor:
Zhang, Yi, Comparat, Johan, Ponti, Gabriele, Merloni, Andrea, Nandra, Kirpal, Haberl, Frank, Truong, Nhut, Pillepich, Annalisa, Locatelli, Nicola, Zhang, Xiaoyuan, Sanders, Jeremy, Zheng, Xueying, Liu, Ang, Popesso, Paola, Liu, Teng, Predehl, Peter, Salvato, Mara
Understanding how the hot circum-galactic medium (CGM) properties relate to the galaxy's properties can constrain galaxy evolution models. We aim to measure the scaling relations between the X-ray luminosity of the hot CGM and the fundamental propert
Externí odkaz:
http://arxiv.org/abs/2401.17309
Autor:
Zhang, Yi, Comparat, Johan, Ponti, Gabriele, Merloni, Andrea, Nandra, Kirpal, Haberl, Frank, Locatelli, Nicola, Zhang, Xiaoyuan, Sanders, Jeremy, Zheng, Xueying, Liu, Ang, Popesso, Paola, Liu, Teng, Truong, Nhut, Pillepich, Annalisa, Predehl, Peter, Salvato, Mara
We apply a stacking technique to gain enough statistics to detect the hot CGM around galaxies. We use the X-ray data from the first four SRG/eROSITA all-sky surveys (eRASS:4). We discuss how the satellite galaxies could bias the stacking and carefull
Externí odkaz:
http://arxiv.org/abs/2401.17308
Radio relics are diffuse synchrotron sources in the outskirts of merging galaxy clusters energized by the merger shocks. In this paper, we present an overview of the radio relics in massive cluster mergers identified in the new TNG-Cluster simulation
Externí odkaz:
http://arxiv.org/abs/2311.06340