English
Related papers

Related papers: The predicted luminous satellite populations aroun…

200 papers

We use the Auriga cosmological simulations of Milky Way (MW)-mass galaxies and their surroundings to study the satellite populations of dwarf galaxies in $\Lambda$CDM. As expected from prior work, the number of satellites above a fixed…

Several occupational distributions for satellite galaxies more massive than ms~4E7 Msun around MW-sized hosts are presented and used to predict their internal dynamics. For this, a galaxy group mock catalog is constructed on the basis of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 A. Rodriguez-Puebla , V. Avila-Reese , N. Drory

Observational work have shown that the two brightest satellite galaxies of the Milky Way (MW), the Large Magellanic Cloud (LMC) and the Small Magellanic Cloud (SMC), are rare amongst MW analogues. It is then interesting to know whether the…

Astrophysics of Galaxies · Physics 2019-05-21 Dali Zhang , Yu Luo , Xi Kang

We establish the connection between the Magellanic Clouds (MCs) and the dwarf galaxy candidates discovered in the Dark Energy Survey (DES) by building a dynamical model of the MC satellite populations, based on an extensive suite of…

Astrophysics of Galaxies · Physics 2016-06-15 Prashin Jethwa , Denis Erkal , Vasily Belokurov

We use the APOSTLE $\Lambda$CDM cosmological hydrodynamical simulations of the Local Group to study the recent accretion of massive satellites into the halo of Milky Way (MW)-sized galaxies. These systems are selected to be close analogues…

Astrophysics of Galaxies · Physics 2021-04-21 Isabel M. E. Santos-Santos , Azadeh Fattahi , Laura V. Sales , Julio F. Navarro

We calculate the probability that a Milky-Way-like halo in the standard cosmological model has the observed number of Magellanic Clouds (MCs). The statistics of the number of MCs in the LCDM model are in good agreement with observations of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Michael T. Busha , Risa H. Wechsler , Peter S. Behroozi , Brian F. Gerke , Anatoly A. Klypin , Joel R. Primack

The Milky Way (MW) and M31 both harbor massive satellite galaxies, the Large Magellanic Cloud (LMC) and M33, which may comprise up to 10 per cent of their host's total mass. Massive satellites can change the orbital barycentre of the…

Astrophysics of Galaxies · Physics 2016-12-07 Ekta Patel , Gurtina Besla , Tony Sohn

A recent surge in the discovery of new ultrafaint dwarf satellites of the Milky Way has inspired the idea of searching for faint satellites, $10^3\, \mathrm{M_{\odot}} < M_* < 10^6\, \mathrm{M_{\odot}}$, around less massive field galaxies…

Astrophysics of Galaxies · Physics 2017-09-06 Gregory A. Dooley , Annika H. G. Peter , Tianyi Yang , Beth Willman , Brendan F. Griffen , Anna Frebel

Motivated by the recent discovery of several dwarfs near the Large Magellanic Cloud (LMC), we study the accretion of massive satellites onto Milky Way (MW)/M31-like halos using the ELVIS suite of N-body simulations. We identify 25 surviving…

Astrophysics of Galaxies · Physics 2015-09-23 Alis J. Deason , Andrew R. Wetzel , Shea Garrison-Kimmel , Vasily Belokurov

Characterizing the predicted environments of dwarf galaxies like the Large Magellanic Cloud (LMC) is becoming increasingly important as next generation surveys push sensitivity limits into this low-mass regime at cosmological distances. We…

We examine Milky Way-Magellanic Cloud systems selected from the Millennium-II Simulation in order to place the orbits of the Magellanic Clouds in a cosmological context. Our analysis shows that satellites massive enough to be LMC analogs…

Astrophysics of Galaxies · Physics 2011-06-09 Michael Boylan-Kolchin , Gurtina Besla , Lars Hernquist

We introduce a probabilistic approach to the problem of counting dwarf satellites around host galaxies in databases with limited redshift information. This technique is used to investigate the occurrence of satellites with luminosities…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Lulu Liu , Brian F. Gerke , Risa H. Wechsler , Peter S. Behroozi , Michael T. Busha

We study the orbits of ultra-faint dwarf galaxies in the combined presence of the Milky Way and LMC and we find 6 dwarfs which were likely accreted with the LMC (Car 2, Car 3, Hor 1, Hyi 1, Phe 2, Ret 2), in addition to the SMC,…

Astrophysics of Galaxies · Physics 2020-05-13 Denis Erkal , Vasily A. Belokurov

We use cosmological simulations from the Aquarius Project to study the orbital history of the Large Magellanic Cloud (LMC) and its potential association with other satellites of the Milky Way (MW). We search for dynamical analogs to the LMC…

Astrophysics of Galaxies · Physics 2015-05-28 Laura V. Sales , Julio F. Navarro , Andrew P. Cooper , Simon D. M. White , Carlos S. Frenk , Amina Helmi

We use a volume-limited spectroscopic sample of isolated galaxies in the Sloan Digital Sky Survey (SDSS) to investigate the frequency and radial distribution of luminous (M_r <~ -18.3) satellites like the Large Magellanic Cloud (LMC) around…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Erik J. Tollerud , Michael Boylan-Kolchin , Elizabeth J. Barton , James S. Bullock , Christopher Q. Trinh

We investigate the population of dwarf galaxies with stellar masses similar to the Large Magellanic Cloud (LMC) and M33 in the EAGLE galaxy formation simulation. In the field, galaxies reside in haloes with stellar-to-halo mass ratios of…

Astrophysics of Galaxies · Physics 2018-06-29 Shi Shao , Marius Cautun , Alis J. Deason , Carlos S. Frenk , Tom Theuns

The properties of dwarf galaxies orbiting the Milky Way (MW) are useful for testing models of the formation of our Galaxy, and by extension various theories of cosmology. Recent efforts to measure the masses of the MW's satellite dwarf…

Astrophysics of Galaxies · Physics 2025-12-12 Thomas Donlon , Sukanya Chakrabarti , Jason A. S. Hunt

According to the standard cosmological scenario, the large galaxies that we observe today have reached their current mass via mergers with smaller galaxy satellites (Moore et al.1999). This hierarchical process is expected to take place on…

Astrophysics of Galaxies · Physics 2021-10-22 A. Mucciarelli , D. Massari , A. Minelli , D. Romano , M. Bellazzini , F. R. Ferraro , F. Matteucci , L. Origlia

We present the first comprehensive census of the satellite population around a Large Magellanic Cloud (LMC) stellar-mass galaxy, as part of the Magellanic Analog Dwarf Companions and Stellar Halos (MADCASH) survey. We have surveyed NGC 2403…

We present a study illustrating the effects of the passage of a Large Magellanic Cloud (LMC) mass satellite on the distance and velocity distributions of satellites in $\Lambda+$Cold Dark Matter simulations of Milky Way (MW) sized halos. In…

Astrophysics of Galaxies · Physics 2024-06-24 Andrey Kravtsov , Sophia Winney
‹ Prev 1 2 3 10 Next ›