Zobrazeno 1 - 10
of 697
pro vyhledávání: '"Grebel, Eva. K."'
Autor:
Medina, Gustavo E., Muñoz, Ricardo R., Carlin, Jeffrey L., Vivas, A. Katherina, Grebel, Eva K., Martínez-Vázquez, Clara E., Hansen, Camilla J.
In order to constrain the evolutionary history of the Milky Way, we hunt for faint RR Lyrae stars (RRLs) using Dark Energy Camera data from the High cadence Transient Survey (HiTS) and the Halo Outskirts With Variable Stars (HOWVAST) survey. We repor
Externí odkaz:
http://arxiv.org/abs/2402.14055
Autor:
Finn, Molly K., Johnson, Kelsey E., Indebetouw, Remy, Costa, Allison H., Adamo, Angela, Aloisi, Alessandra, Bittle, Lauren, Calzetti, Daniela, Dale, Daniel A., Dobbs, Clare L., Meyer, Jennifer Donovan, Elmegreen, Bruce G., Elmegreen, Debra M., Fumagalli, Michele, Gallagher, J. S., Grasha, Kathryn, Grebel, Eva K., Kennicutt, Robert C., Krumholz, Mark R., Lee, Janice C., Messa, Matteo, Nair, Preethi, Sabbi, Elena, Smith, Linda J., Thilker, David A., Whitmore, Bradley C., Wofford, Aida
We compare the molecular cloud properties in sub-galactic regions of two galaxies, barred spiral NGC 1313, which is forming many massive clusters, and flocculent spiral NGC 7793, which is forming significantly fewer massive clusters despite having a
Externí odkaz:
http://arxiv.org/abs/2401.01451
Autor:
Finn, Molly K., Johnson, Kelsey E., Indebetouw, Remy, Costa, Allison H., Adamo, Angela, Aloisi, Alessandra, Bittle, Lauren, Calzetti, Daniela, Dale, Daniel A., Dobbs, Clare L., Meyer, Jennifer Donovan, Elmegreen, Bruce G., Elmegreen, Debra M., Fumagalli, Michele, Gallagher, J. S., Grasha, Kathryn, Grebel, Eva K., Kennicutt, Robert C., Krumholz, Mark R., Lee, Janice C., Messa, Matteo, Nair, Preethi, Sabbi, Elena, Smith, Linda J., Thilker, David A., Whitmore, Bradley C., Wofford, Aida
We present a comparative study of the molecular gas in two galaxies from the LEGUS sample: barred spiral NGC 1313 and flocculent spiral NGC 7793. These two galaxies have similar masses, metallicities, and star formation rates, but NGC 1313 is forming
Externí odkaz:
http://arxiv.org/abs/2401.01450
Autor:
Medina, Gustavo E., Hansen, Camilla J., Muñoz, Ricardo R., Grebel, Eva K., Vivas, A. Katherina, Carlin, Jeffrey L., Martínez-Vázquez, Clara E.
Publikováno v:
2023, MNRAS, 519, 5689
We report the spectroscopic analysis of 20 halo ab-type RR Lyrae stars with heliocentric distances between 15 and 165 kpc, conducted using medium-resolution spectra from the Magellan Inamori Kyocera Echelle (MIKE) spectrograph. We obtain the systemic
Externí odkaz:
http://arxiv.org/abs/2309.03271
Autor:
Bidaran, Bahar, La Barbera, Francesco, Pasquali, Anna, van de Ven, Glenn, Peletier, Reynier, Falcón-Barroso, Jesus, Gadotti, Dimitri A., Sybilska, Agnieszka, Grebel, Eva K.
Using MUSE data, we investigate the radial gradients of stellar population properties (namely age, [M/H], and the abundance ratio of $\alpha$ elements [$\alpha$/Fe]) for a sample of nine dwarf early-type (dE) galaxies with log(M$_{\star}$/M$_{\odot}$
Externí odkaz:
http://arxiv.org/abs/2308.16768
Autor:
Sedda, Manuel Arca, Kamlah, Albrecht W. H., Spurzem, Rainer, Giersz, Mirek, Berczik, Peter, Rastello, Sara, Iorio, Giuliano, Mapelli, Michela, Gatto, Massimiliano, Grebel, Eva K.
We present the first results of the \textsc{Dragon-II} simulations, a suite of 19 $N$-body simulations of star clusters with up to $10^6$ stars, with up to $33\%$ of them initially paired in binaries. In this work, we describe the main evolution of t
Externí odkaz:
http://arxiv.org/abs/2307.04805
Autor:
Engler, Christoph, Pillepich, Annalisa, Joshi, Gandhali D., Pasquali, Anna, Nelson, Dylan, Grebel, Eva K.
We analyse the quenched fractions, gas content, and star formation histories of ~1200 satellite galaxies with $M_* \geq 5 \times 10^6~{\rm M}_\odot$ around 198 Milky Way- (MW) and Andromeda-like (M31) hosts in TNG50, the highest-resolution simulation
Externí odkaz:
http://arxiv.org/abs/2211.00010
Autor:
Bidaran, Bahar, La Barbera, Francesco, Pasquali, Anna, Peletier, Reynier, van de Ven, Glenn, Grebel, Eva K., Falcón-Barroso, Jesus, Sybilska, Agnieszka, Gadotti, Dimitri A., Coccato, Lodovico
Using MUSE spectra, we investigate how pre-processing and accretion onto a galaxy cluster affect the integrated stellar population properties of dwarf early-type galaxies (dEs). We analyze a sample of nine dEs with stellar masses of $\rm \sim 10^9 \,
Externí odkaz:
http://arxiv.org/abs/2207.06977
Autor:
Dékány, István, Grebel, Eva K.
RR Lyrae stars are useful chemical tracers thanks to the empirical relationship between their heavy-element abundance and the shape of their light curves. However, the consistent and accurate calibration of this relation across multiple photometric w
Externí odkaz:
http://arxiv.org/abs/2205.14471
Autor:
Michea, Josefina, Pasquali, Anna, Smith, Rory, Calderón-Castillo, Paula, Grebel, Eva K., Peletier, Reynier F.
It has been well established that dwarf early-type galaxies (ETGs) can often exhibit a complex morphology, whereby faint spiral arms, bars, edge-on disks or clumps are embedded in their main, brighter diffuse body. In our first paper (Brought to Ligh
Externí odkaz:
http://arxiv.org/abs/2205.06281