Zobrazeno 1 - 10
of 938
pro vyhledávání: '"Cappellari, Michele"'
The hierarchical structure formation of our Universe inherently involves violent and chaotic episodes of mass assembly such as galaxy mergers. The level of bulk rotation of the collisionless stellar systems of galaxies reflects to what extent the gal
Externí odkaz:
http://arxiv.org/abs/2409.17257
Autor:
Scognamiglio, Diana, Spiniello, Chiara, Radovich, Mario, Tortora, Crescenzo, Napolitano, Nicola R., Li, Rui, Maturi, Matteo, Maksymowicz-Maciata, Michalina, Cappellari, Michele, Arnaboldi, Magda, Bevacqua, Davide, Coccato, Lodovico, D'Ago, Giuseppe, Feng, Hai-Cheng, Ferré-Mateu, Anna, Hartke, Johanna, Martín-Navarro, Ignacio, Pulsoni, Claudia
Relic galaxies, the oldest ultra-compact massive galaxies (UCMGs), contain almost exclusively "pristine" stars formed during an intense star formation (SF) burst at high redshift. As such, they allow us to study in detail the early mechanism of galax
Externí odkaz:
http://arxiv.org/abs/2409.12288
Autor:
Knabel, Shawn, Treu, Tommaso, Cappellari, Michele, Shajib, Anowar J., Chen, Chih-Fan, Bennert, Vardha N.
We obtain spatially resolved kinematics with the Keck Cosmic Web Imager (KCWI) integral-field spectrograph for a sample of 14 massive (11 < log10 M* < 12) lensing early-type galaxies (ETGs) at redshifts z=0.15-0.35 from the Sloan Lens ACS (SLACS) sur
Externí odkaz:
http://arxiv.org/abs/2409.10631
It is not straightforward to physically interpret the apparent morphology of galaxies. Recent observations by James Webb Space Telescope (JWST) revealed a dominant galaxy population at high redshifts ($z>2$) that were visually classified as discs for
Externí odkaz:
http://arxiv.org/abs/2408.10735
Autor:
Sheu, William, Shajib, Anowar J., Treu, Tommaso, Sonnenfeld, Alessandro, Birrer, Simon, Cappellari, Michele, Oldham, Lindsay J., Tan, Chin Yi
We present a new measurement of the dark and luminous matter distribution of massive elliptical galaxies, and their evolution with redshift, by combining strong lensing and dynamical observables. Our sample of 58 lens galaxies covers a redshift range
Externí odkaz:
http://arxiv.org/abs/2408.10316
Autor:
Nguyen, Dieu D., Cappellari, Michele, Ngo, Hai N., Le, Tinh Q. T., Ho, Khue N . H., Nguyen, An K., Tong, Huy G ., On, Phong T., Le, Tuan N., Pereira-Santaella, Miguel
The fraction of low-mass galaxies hosting an intermediate-mass black hole (IMBH, with masses $M_{\rm BH} \approx 10^2-10^5$ M$_\odot$), is sensitive to how black hole seeds formed in the early Universe but is observationally still unconstrained. In t
Externí odkaz:
http://arxiv.org/abs/2408.00239
Autor:
Choi, Woorak, Bureau, Martin, Liu, Lijie, Cappellari, Michele, Davis, Timothy A., Gensior, Jindra, Liang, Fu-Heng, Lu, Anan, Moon, Sanghyuk, Ruffa, Ilaria, Williams, Thomas G., Chung, Aeree
NGC~613 is a nearby barred spiral galaxy with a nuclear ring. Exploiting high spatial resolution ($\approx20$ pc) Atacama Large Millimeter/sub-millimeter Array $^{12}$CO(1-0) observations, we study the giant molecular clouds (GMCs) in the nuclear rin
Externí odkaz:
http://arxiv.org/abs/2405.19709
Autor:
Bershady, Matthew A., Westfall, Kyle B., Shetty, Shravan, Law, David R., Cappellari, Michele, Drory, Niv, Bundy, Kevin, Yan, Renbin
We measure the age-velocity relationship from the lag between ionized gas and stellar tangential speeds in ~500 nearby disk galaxies from MaNGA in SDSS-IV. Selected galaxies are kinematically axisymmetric. Velocity lags are asymmetric drift, seen in
Externí odkaz:
http://arxiv.org/abs/2405.02460
Autor:
Zhang, Hengyue, Bureau, Martin, Smith, Mark D., Cappellari, Michele, Davis, Timothy A., Dominiak, Pandora, Elford, Jacob S., Liang, Fu-Heng, Ruffa, Ilaria, Williams, Thomas G.
The mass ($M_\mathrm{BH}$) of a supermassive black hole (SMBH) can be measured using spatially-resolved kinematics of the region where the SMBH dominates gravitationally. The most reliable measurements are those that resolve the smallest physical sca
Externí odkaz:
http://arxiv.org/abs/2404.16345
Autor:
Dominiak, Pandora, Cappellari, Michele, Bureau, Martin, Davis, Timothy A., Sarzi, Marc, Ruffa, Ilaria, Iguchi, Satoru, Williams, Thomas G., Zhang, Hengyue
Supermassive black hole (SMBH) masses can be measured by observing the impacts of the SMBHs on dynamical tracers around them. We present high angular resolution ($0.19$ arcsec or $\approx24$ pc) Atacama Large Millimeter/submillimeter Array observatio
Externí odkaz:
http://arxiv.org/abs/2404.11260