Zobrazeno 1 - 10
of 295
pro vyhledávání: '"Dotter, Aaron"'
Autor:
Andrews, Jeff J., Bavera, Simone S., Briel, Max, Chattaraj, Abhishek, Dotter, Aaron, Fragos, Tassos, Gallegos-Garcia, Monica, Gossage, Seth, Kalogera, Vicky, Kasdagli, Eirini, Katsaggelos, Aggelos, Kimball, Chase, Kovlakas, Konstantinos, Kruckow, Matthias U., Liotine, Camille, Misra, Devina, Rocha, Kyle A., Souropanis, Dimitris, Srivastava, Philipp M., Sun, Meng, Teng, Elizabeth, Xing, Zepei, Zapartas, Emmanouil, Zevin, Michael
Whether considering rare astrophysical events on cosmological scales or unresolved stellar populations, accurate models must account for the integrated contribution from the entire history of star formation upon which that population is built. Here,
Externí odkaz:
http://arxiv.org/abs/2411.02376
Autor:
Park, Minjung, Conroy, Charlie, Johnson, Benjamin D., Leja, Joel, Dotter, Aaron, Cargile, Phillip A.
We present new stellar population models, $\alpha$-MC, self-consistently taking into account non-solar $\rm [\alpha/Fe]$ abundances for both isochrones and stellar spectra. The $\alpha$-MC models are based on $\alpha$-enhanced MIST isochrones and C3K
Externí odkaz:
http://arxiv.org/abs/2410.21375
Autor:
Cristofari, Paul I., Dupree, Andrea K., Milone, Antonino P., Walker, Matthew G., Mateo, Mario, Dotter, Aaron, Bailey III, John I.
We present an analysis of high-resolution optical spectra recorded for 30 stars of the split extended main-sequence turnoff (eMSTO) of the young ($\sim$ 40 Myr) Small Magellanic Cloud (SMC) globular cluster NGC 330. Spectra were obtained with the M2F
Externí odkaz:
http://arxiv.org/abs/2406.10413
Autor:
Liu, Fan, Ting, Yuan-Sen, Yong, David, Bitsch, Bertram, Karakas, Amanda, Murphy, Michael T., Joyce, Meridith, Dotter, Aaron, Dai, Fei
Stellar chemical compositions can be altered by ingestion of planetary material and/or planet formation which removes refractory material from the proto-stellar disc. These "planet signatures" appear as correlations between elemental abundance differ
Externí odkaz:
http://arxiv.org/abs/2403.13209
Autor:
Weisz, Daniel R., Dolphin, Andrew E., Savino, Alessandro, McQuinn, Kristen B. W., Newman, Max J. B., Williams, Benjamin F., Kallivayalil, Nitya, Anderson, Jay, Boyer, Martha L., Correnti, Matteo, Geha, Marla C., Sandstrom, Karin M., Cole, Andrew A., Warfield, Jack T., Skillman, Evan D., Cohen, Roger E., Beaton, Rachael, Bressan, Alessandro, Bolatto, Alberto, Boylan-Kolchin, Michael, Brooks, Alyson M., Bullock, James S., Conroy, Charlie, Cooper, Michael C., Dalcanton, Julianne J., Dotter, Aaron L., Fritz, Tobias K., Garling, Christopher T., Gennaro, Mario, Gilbert, Karoline M., Girardi, Leo, Johnson, Benjamin D., Johnson, L. Clifton, Kalirai, Jason, Kirby, Evan N., Lang, Dustin, Marigo, Paola, Richstein, Hannah, Schlafly, Edward F., Tollerud, Erik J., Wetzel, Andrew
We present NIRCam and NIRISS modules for DOLPHOT, a widely-used crowded field stellar photometry package. We describe details of the modules including pixel masking, astrometric alignment, star finding, photometry, catalog creation, and artificial st
Externí odkaz:
http://arxiv.org/abs/2402.03504
Autor:
Misra, Devina, Kovlakas, Konstantinos, Fragos, Tassos, Andrews, Jeff J., Bavera, Simone S., Zapartas, Emmanouil, Xing, Zepei, Dotter, Aaron, Rocha, Kyle Akira, Srivastava, Philipp M., Sun, Meng
Publikováno v:
A&A 682, A69 (2024)
Ultra-luminous X-ray sources (ULXs) are sources observed to exceed the Eddington limit of a stellar-mass black hole (BH). A fraction of ULX sources show X-ray pulses which are evidence for accreting neutron stars (NSs). Theoretical studies have sugge
Externí odkaz:
http://arxiv.org/abs/2309.15904
Autor:
Xing, Zepei, Bavera, Simone S., Fragos, Tassos, Kruckow, Matthias U., Román-Garza, Jaim, Andrews, Jeff J., Dotter, Aaron, Kovlakas, Konstantinos, Misra, Devina, Srivastava, Philipp M., Rocha, Kyle A., Sun, Meng, Zapartas, Emmanouil
Neutron star $-$ black hole (NSBH) merger events bring us new opportunities to constrain theories of stellar and binary evolution, and understand the nature of compact objects. In this work, we investigate the formation of merging NSBH binaries at so
Externí odkaz:
http://arxiv.org/abs/2309.09600
Autor:
Yong, David, Liu, Fan, Ting, Yuan-Sen, Joyce, Meridith, Bitsch, Bertram, Dai, Fei, Dotter, Aaron, Karakas, Amanda I., Murphy, Michael T.
We conduct a line-by-line differential analysis of a sample of 125 co-moving pairs of stars (dwarfs and subgiants near solar metallicity). We obtain high precision stellar parameters with average uncertainties in effective temperature, surface gravit
Externí odkaz:
http://arxiv.org/abs/2309.01546
Autor:
Simunovic, Mirko, Puzia, Thomas H., Miller, Bryan, Carrasco, Eleazar R., Dotter, Aaron, Cassisi, Santi, Monty, Stephanie, Stetson, Peter
We present a photometric analysis of globular cluster 47 Tuc (NGC\,104), using near-IR imaging data from the GeMS/GSAOI Galactic Globular Cluster Survey (G4CS) which is in operation at Gemini-South telescope.~Our survey is designed to obtain AO-assis
Externí odkaz:
http://arxiv.org/abs/2304.11240
Autor:
Ziliotto, Tuila, Milone, Antonino P., Marino, Anna F., Dotter, Aaron L., Renzini, Alvio, Vesperini, Enrico, Karakas, Amanda I., Cordoni, Giacomo, Dondoglio, Emanuele, Legnardi, Maria V., Lagioia, Edoardo P., Mohandasan, Anjana, Baimukhametova, Sarah
Publikováno v:
ApJ 953 62 (2023)
Recent work on metal-intermediate globular clusters (GCs) with [Fe/H]=$-1.5$ and $-0.75$ has illustrated the theoretical behavior of multiple populations in photometric diagrams obtained with the James Webb Space Telescope (JWST). These results are c
Externí odkaz:
http://arxiv.org/abs/2304.06026