Search Results - "BELOKUROV, Vasily"

The last breath of the Sagittarius dSph by Vasiliev, Eugene, Belokurov, Vasily

“…ABSTRACT We use the astrometric and photometric data from Gaia Data Release 2 and line-of-sight velocities from various other surveys to study the 3D structure…”
Get full text

Limit on the LMC mass from a census of its satellites by Erkal, Denis, Belokurov, Vasily A

“…ABSTRACT We study the orbits of dwarf galaxies in the combined presence of the Milky Way and Large Magellanic Cloud (LMC) and find six dwarfs that were likely…”
Get full text

Tango for three: Sagittarius, LMC, and the Milky Way by Vasiliev, Eugene, Belokurov, Vasily, Erkal, Denis

“…ABSTRACT We assemble a catalogue of candidate Sagittarius stream members with 5D and 6D phase-space information, using astrometric data from Gaia DR2,…”
Get full text

Clouds in arms by Belokurov, Vasily A, Erkal, Denis

“…We use astrometry and broad-band photometry from Data Release 2 of the ESA’s Gaia mission to map out low surface-brightness features in the stellar density…”
Get full text

Forensics of subhalo–stream encounters: the three phases of gap growth by Erkal, Denis, Belokurov, Vasily

“…There is hope to discover dark matter subhaloes free of stars (predicted by the current theory of structure formation) by observing gaps they produce in tidal…”
Get full text

Equilibrium models of the Milky Way mass are biased high by the LMC by Erkal, Denis, Belokurov, Vasily A, Parkin, Daniel L

“…ABSTRACT Recent measurements suggest that the Large Magellanic Cloud (LMC) may weigh as much as 25 per cent of the Milky Way (MW). In this work, we explore how…”
Get full text

Radialization of Satellite Orbits in Galaxy Mergers by Vasiliev, Eugene, Belokurov, Vasily, Evans, N. Wyn

“…We consider the orbital evolution of satellites in galaxy mergers, focusing on the evolution of eccentricity. Using a large suite of N -body simulations, we…”
Get full text

The total stellar halo mass of the Milky Way by Deason, Alis J, Belokurov, Vasily, Sanders, Jason L

“…We measure the total stellar halo luminosity using red giant branch (RGB) stars selected from Gaia data release 2. Using slices in magnitude, colour, and…”
Get full text

The number and size of subhalo-induced gaps in stellar streams by Erkal, Denis, Belokurov, Vasily, Bovy, Jo, Sanders, Jason L.

“…Ample observational capabilities exist today to detect the small density perturbations that low-mass dark matter subhaloes impart on stellar streams from…”
Get full text

The biggest splash by Belokurov, Vasily, Sanders, Jason L, Fattahi, Azadeh, Smith, Martin C, Deason, Alis J, Evans, N Wyn, Grand, Robert J J

“…ABSTRACT Using a large sample of bright nearby stars with accurate Gaia Data Release 2 astrometry and auxiliary spectroscopy we map out the properties of the…”
Get full text

The local high-velocity tail and the Galactic escape speed by Deason, Alis J, Fattahi, Azadeh, Belokurov, Vasily, Evans, N Wyn, Grand, Robert J J, Marinacci, Federico, Pakmor, Rüdiger

“…Abstract We model the fastest moving ($v_{\rm tot} \gt 300 \, {\rm km}\, \, {\rm s}^{-1}$) local (D ≲ 3 kpc) halo stars using cosmological simulations and…”
Get full text

Evidence for sub-Chandrasekhar Type Ia supernovae from the last major merger by Sanders, Jason L, Belokurov, Vasily, Man, Kai T F

“…ABSTRACT We investigate the contribution of sub-Chandrasekhar mass Type Ia supernovae to the chemical enrichment of the Gaia Sausage galaxy, the progenitor of…”
Get full text

Crater 2: An Extremely Cold Dark Matter Halo by Caldwell, Nelson, Walker, Matthew G., Mateo, Mario, Olszewski, Edward W., Koposov, Sergey, Belokurov, Vasily, Torrealba, Gabriel, Geringer-Sameth, Alex, Johnson, Christian I.

“…We present results from MMT/Hectochelle spectroscopy of 390 red giant candidate stars along the line of sight to the recently discovered Galactic satellite…”
Get full text

Detection of the LMC-induced sloshing of the Galactic halo by Erkal, Denis, Deason, Alis J, Belokurov, Vasily, Xue, Xiang-Xiang, Koposov, Sergey E, Bird, Sarah A, Liu, Chao, Simion, Iulia T, Yang, Chengqun, Zhang, Lan, Zhao, Gang

“…ABSTRACT A wealth of recent studies have shown that the LMC is likely massive, with a halo mass >1011 M⊙. One consequence of having such a nearby and massive…”
Get full text

The mass of the Milky Way out to 100 kpc using halo stars by Deason, Alis J, Erkal, Denis, Belokurov, Vasily, Fattahi, Azadeh, Gómez, Facundo A, Grand, Robert J J, Pakmor, Rüdiger, Xue, Xiang-Xiang, Liu, Chao, Yang, Chengqun, Zhang, Lan, Zhao, Gang

“…ABSTRACT We use a distribution function analysis to estimate the mass of the Milky Way (MW) out to 100 kpc using a large sample of halo stars. These stars are…”
Get full text

Snake in the Clouds: a new nearby dwarf galaxy in the Magellanic bridge by Koposov, Sergey E, Walker, Matthew G, Belokurov, Vasily, Casey, Andrew R, Geringer-Sameth, Alex, Mackey, Dougal, Da Costa, Gary, Erkal, Denis, Jethwa, Prashin, Mateo, Mario, Olszewski, Edward W, Bailey, John I

Get full text

Indication of Gamma-Ray Emission from the Newly Discovered Dwarf Galaxy Reticulum II by Geringer-Sameth, Alex, Walker, Matthew G, Koushiappas, Savvas M, Koposov, Sergey E, Belokurov, Vasily, Torrealba, Gabriel, Evans, N Wyn

“…We present a search for γ-ray emission from the direction of the newly discovered dwarf galaxy Reticulum II. Using Fermi-LAT Collaboration data, we detect a…”
Get full text

The Pisces Plume and the Magellanic wake by Belokurov, Vasily, Deason, Alis J, Erkal, Denis, Koposov, Sergey E, Carballo-Bello, Julio A, Smith, Martin C, Jethwa, Prashin, Navarrete, Camila

“…ABSTRACT Using RR Lyrae stars in the Gaia Data Release 2 and Pan-STARRS1 we study the properties of the Pisces overdensity, a diffuse substructure in the outer…”
Get full text

MAGELLAN/M2FS SPECTROSCOPY OF TUCANA 2 AND GRUS 1 by Walker, Matthew G, Mateo, Mario, Olszewski, Edward W, Koposov, Sergey, Belokurov, Vasily, Jethwa, Prashin, Nidever, David L, Bonnivard, Vincent, Bailey, John I, Bell, Eric F, Loebman, Sarah R

“…We present results from spectroscopic observations with the Michigan/ Magellan Fiber System (M2FS) of 147 stellar targets along the line of sight to the newly…”
Get full text

Trojan Globular Clusters: Radial Migration via Trapping in Bar Resonances by Dillamore, Adam M., Monty, Stephanie, Belokurov, Vasily, Evans, N. Wyn

“…We search for globular clusters (GCs) trapped in resonances with the bar of the Milky Way (MW). By integrating their orbits in a potential with a decelerating…”
Get full text