Results 21 to 30 of about 151,078 (334)

Milky Way Mass Models and MOND [PDF]

, 2008
Using the Tuorla-Heidelberg model for the mass distribution of the Milky Way, I determine the rotation curve predicted by MOND. The result is in good agreement with the observed terminal velocities interior to the solar radius and with estimates of the ...
Angus G. W., Begeman K. G., Binney J., Binney J., Brada R., Broeils A. H., de Blok W. J. G., Famaey B., Famaey B., Feast M., Gerhard O., Hayashi E., Iorio L., Kerr F. J., Pointecouteau E., Sanders R. H., Stacy S. McGaugh   +16 more
core   +3 more sources

The Imprint of Clump Formation at High Redshift. II. The Chemistry of the Bulge

The Astrophysical Journal, 2023
In Paper I, we showed that clumps in high-redshift galaxies, having a high star formation rate density (Σ _SFR ), produce disks with two tracks in the [Fe/H]–[ α /Fe] chemical space, similar to that of the Milky Way’s (MW’s) thin+thick disks.
Victor P. Debattista, David J. Liddicott, Oscar A. Gonzalez, Leandro Beraldo e Silva, João A. S. Amarante, Ilin Lazar, Manuela Zoccali, Elena Valenti, Deanne B. Fisher, Tigran Khachaturyants, David L. Nidever, Thomas R. Quinn, Min Du, Susan Kassin   +13 more
doaj   +1 more source

The connection between the host halo and the satellite galaxies of the Milky Way [PDF]

, 2016
Many properties of the Milky Way's dark matter halo, including its mass assembly history, concentration, and subhalo population, remain poorly constrained.
Benson, Andrew, Boylan-Kolchin, Michael, Lu, Yu, Mao, Yao-Yuan, Peter, Annika H. G., Tonnesen, Stephanie, Wechsler, Risa H., Wetzel, Andrew R.   +7 more
core   +3 more sources

The Gaia-ESO Survey: the selection function of the Milky Way field stars [PDF]

, 2016
The Gaia-ESO Survey was designed to target all major Galactic components (i.e., bulge, thin and thick discs, halo and clusters), with the goal of constraining the chemical and dynamical evolution of the Milky Way.
Bensby, T., Bragaglia, A., Casey, A. R., Costado, M. T., Feltzing, S., Franciosini, E., Gilmore, G., Hourihane, A., Howes, L. M., Jofre, P., Koposov, S. E., Kordopatis, G., Korn, A. J., Lanzafame, A. C., Lardo, C., Lewis, J., Magrini, L., Monaco, L., Morbidelli, L., Pancino, E., Randich, S., Ruchti, G. R., Sacco, G. G., Sbordone, L., Smiljanic, R., Stonkute, E., Tautvaisiene, G., Worley, C. C., Zwitter, T.   +28 more
core   +4 more sources

Distant Echoes of the Milky Way’s Last Major Merger

The Astrophysical Journal, 2023
The majority of the Milky Way’s stellar halo consists of debris from our galaxy’s last major merger, the Gaia-Sausage-Enceladus (GSE). In the past few years, stars from the GSE have been kinematically and chemically studied in the inner 30 kpc of our ...
Vedant Chandra, Rohan P. Naidu, Charlie Conroy, Alexander P. Ji, Hans-Walter Rix, Ana Bonaca, Phillip A. Cargile, Jiwon Jesse Han, Benjamin D. Johnson, Yuan-Sen Ting, Turner Woody, Dennis Zaritsky   +11 more
doaj   +1 more source

The centre of the Milky Way [PDF]

Nature, 1993
Direct photometric evidence has established that the central bulge of our Galaxy (the Milky Way) is actually a stellar bar. The dynamics of the bar will drive material into the Galaxy's centre but recent X-ray observations suggest that much of the inflowing gas is driven out again in a high-pressure galactic wind.
Blitz, L, Binney, J, Lo, K, Bally, J, Ho, P   +4 more
openaire   +2 more sources

How Common are the Magellanic Clouds? [PDF]

, 2011
We introduce a probabilistic approach to the problem of counting dwarf satellites around host galaxies in databases with limited redshift information.
Abazajian, Belokurov, Besla, Blanton, Blanton, Blanton, Brian F. Gerke, Bullock, Busha, Busha, Busha, Chen, Conroy, Conroy, Holmberg, Klypin, Klypin, Klypin, Koposov, Lorrimer, Lulu Liu, Madau, Michael T. Busha, Moore, Oyaizu, Peter S. Behroozi, Prada, Risa H. Wechsler, Strateva, Tollerud, Walsh, Wechsler, York, Zehavi   +33 more
core   +2 more sources

Predicting the locations of possible long-lived low-mass first stars: Importance of satellite dwarf galaxies

, 2017
The search for metal-free stars has so far been unsuccessful, proving that if there are surviving stars from the first generation, they are rare, they have been polluted, or we have been looking in the wrong place.
Agarwal, Bhaskar, Frebel, Anna, Glover, Simon C. O., Griffen, Brendan F., Hartwig, Tilman, Klessen, Ralf S., Magg, Mattis   +6 more
core   +2 more sources

Dust Emissivity Variations In the Milky Way [PDF]

, 2009
Dust properties appear to vary according to the environment in which the dust evolves. Previous observational indications of these variations in the FIR and submm spectral range are scarce and limited to specific regions of the sky.
Abergel, Abergel, Allamandola, Bacmann, Bazell, Bennett, Bernard, Boulanger, Boulanger, C. Mény, Cambrésy, Cambrésy, Cambrésy, Caselli, D. Paradis, Dale, Dame, Delabrouille, Dickey, Draine, Draine, Dupac, Désert, Finkbeiner, Fixsen, Fixsen, J.-Ph. Bernard, Kemper, Lagache, Laureijs, Laureijs, Laureijs, Macias-Perez, Magnani, Mathis, Mény, Puget, Stepnik, Stepnik, Strong, Tielens, Tielens, Tristram, Van de Bult   +43 more
core   +3 more sources

The Three-phase Evolution of the Milky Way

The Astrophysical Journal
We illustrate the formation and evolution of the Milky Way over cosmic time, utilizing a sample of 10 million red giant stars with full chemodynamical information, including metallicities and α -abundances from low-resolution Gaia XP spectra.
Vedant Chandra, Vadim A. Semenov, Hans-Walter Rix, Charlie Conroy, Ana Bonaca, Rohan P. Naidu, René Andrae, Jiadong Li, Lars Hernquist   +8 more
doaj   +1 more source