Zobrazeno 1 - 10
of 5 209
pro vyhledávání: '"old stellar populations"'
Autor:
Witten, Callum, McClymont, William, Laporte, Nicolas, Roberts-Borsani, Guido, Sijacki, Debora, Tacchella, Sandro, Simmonds, Charlotte, Katz, Harley, Ellis, Richard S., Witstok, Joris, Maiolino, Roberto, Ji, Xihan, Hayes, Billy R., Looser, Tobias J., D'Eugenio, Francesco
While JWST has observed galaxies assembling as early as $z\sim14$, evidence of galaxies with significant old stellar populations in the Epoch of Reionisation (EoR) -- the descendants of these earliest galaxies -- are few and far between. Bursty star-
Externí odkaz:
http://arxiv.org/abs/2407.07937
Autor:
Topal, Selçuk
Given the complex nature of galaxies' interstellar medium (ISM), multi-wavelength data are required to probe the interplay among gas, dust, and stellar populations. Spiral galaxies are ideal laboratories for such a goal as they are rich in gas and du
Externí odkaz:
http://arxiv.org/abs/2405.14498
Autor:
Tantalo, Maria, Dall'Ora, Massimo, Bono, Giuseppe, Stetson, Peter B., Fabrizio, Michele, Ferraro, Ivan, Nonino, Mario, Braga, Vittorio F., da Silva, Ronaldo, Fiorentino, Giuliana, Iannicola, Giacinto, Marengo, Massimo, Monelli, Matteo, Mullen, Joseph P., Pietrinferni, Adriano, Salaris, Maurizio
We present accurate and deep multi-band ($g,r,i$) photometry of the Local Group dwarf irregular galaxy NGC 6822. The images were collected with wide field cameras at 2m/4m- (INT,CTIO,CFHT) and 8m-class telescopes (SUBARU) covering a 2 square degrees
Externí odkaz:
http://arxiv.org/abs/2205.15143
We examine a triple-star evolution that might lead to core collapse supernovae (CCSNe) in stellar populations that are too old to allow for single or binary evolution to form CCSNe, i.e., where the most massive stars that evolve off the main sequence
Externí odkaz:
http://arxiv.org/abs/2108.08638
We investigate the origin of the abundance ratios and scatter of the neutron-capture elements Sr, Ba and Eu in the stellar halo of a Milky Way-mass galaxy formed in a hydrodynamical cosmological simulation, and compare them with those of $\alpha$-ele
Externí odkaz:
http://arxiv.org/abs/2107.05653
Autor:
Sarbadhicary, Sumit K., Heiger, Mairead, Badenes, Carles, Mateu, Cecilia, Newman, Jeffrey, Ciardullo, Robin, Hallakoun, Na'ama, Maoz, Dan, Chomiuk, Laura
The delay-time distribution (DTD) is the occurrence rate of a class of objects as a function of time after a hypothetical burst of star formation. DTDs are mainly used as a statistical test of stellar evolution scenarios for supernova progenitors, bu
Externí odkaz:
http://arxiv.org/abs/2101.11618
Autor:
Rosado-Belza, D., Falcón-Barroso, J., Knapen, J. H., Bittner, A., Gadotti, D. A., Neumann, J., de Lorenzo-Cáceres, A., Méndez-Abreu, J., Querejeta, M., Martín-Navarro, I., Sánchez-Blázquez, P., Coelho, P. R. T., Martig, M., van de Ven, G., Kim, T.
Publikováno v:
A&A 644, A116 (2020)
Studying the stellar kinematics of galaxies is a key tool in the reconstruction of their evolution. However, the current measurements of the stellar kinematics are complicated by several factors, including dust extinction and the presence of multiple
Externí odkaz:
http://arxiv.org/abs/2010.11815
Autor:
Ishigaki, Miho N.1 miho.ishigaki@nao.ac.jp
Publikováno v:
Proceedings of the International Astronomical Union. Dec2022, Vol. 18 Issue S377, p79-88. 10p.
Autor:
Panther, Fiona H., Seitenzahl, Ivo R., Ruiter, Ashley J., Crocker, Roland M., Lidman, Chris, Wang, Ella Xi, Tucker, Brad E., Groves, Brent
Publikováno v:
Publ. Astron. Soc. Aust. 36 (2019) e031
SN1991bg-like supernovae are a distinct subclass of thermonuclear supernovae (SNe Ia). Their spectral and photometric peculiarities indicate their progenitors and explosion mechanism differ from `normal' SNe Ia. One method of determining information
Externí odkaz:
http://arxiv.org/abs/1904.10139