41 citations · 130 across the 10 of their papers we have counts for
10 papers
Photometric stellar masses for galaxies in DESI Legacy Imaging Surveys
Ivana Ebrová, Michal Bílek, Jiří Eliášek
In many areas of extragalactic astrophysics, we need to convert the luminosity of a galaxy into its stellar mass. In this work, we aim to find a simple and effective formula to est…
Ubiquitous signs of interactions in early-type galaxies with prolate rotation
Ivana Ebrová, Michal Bílek, Ana Vudragović +2
A small fraction of early-type galaxies (ETGs) show prolate rotation, i.e. they rotate around their long photometric axis. In simulations, certain configurations of galaxy mergers…
A New Method for Aerosol Measurement using Wide-field Photometry
Jan Ebr, Sergey Karpov, Jiří Eliášek +11
We present a new method to measure the vertical aerosol optical depth (VAOD) during clear nights using a wide-field imager - a CCD camera with a photographic lens on an equatorial…
Galaxies with kinematically distinct cores in Illustris
Ivana Ebrová, Ewa L. Łokas, Jiří Eliášek
The growing amount of integral-field spectroscopic data creates an increased demand for understanding kinematic peculiarities that carry valuable information about the evolution of…
Utilizing Shell Galaxies
Ivana Ebrová, Michal Bílek, Bruno Jungwiert
Stellar shells are low surface brightness features in the form of open, concentric arcs, formed in close-to-radial collisions of galaxies. They occur in at least 10% of early-type…
FRAM telescopes and their measurements of aerosol content at the Pierre Auger Observatory and at future sites of the Cherenkov Telescope Array
Petr Janeček, Jan Ebr, Jakub Juryšek +10
A FRAM (F/(Ph)otometric Robotic Atmospheric Monitor) telescope is a system of a robotic mount, a large-format CCD camera and a fast telephoto lens that can be used for atmospheric…
New developments in aerosol measurements using stellar photometry
Jan Ebr, Jakub Juryšek, Michael Prouza +11
The idea of using stellar photometry for atmospheric monitoring for optical experiments in high-energy astrophysics is seemingly straightforward, but reaching high precision of the…
NGC 4993, the shell galaxy host of GW170817: constraints on the recent galactic merger
Ivana Ebrová, Michal Bílek, Mustafa K. Yıldız +1
NGC 4993 is the shell galaxy host of the GRB170817A short gamma-ray burst and the GW170817 gravitational-wave event produced during a binary-neutron-star coalescence. The galaxy sh…
Deep imaging of the shell elliptical galaxy NGC3923 with MegaCam
Michal Bílek, Jean-Charles Cuillandre, Stephen Gwyn +4
Context. The elliptical galaxy NGC 3923 is known to be surrounded by a number of stellar shells, probable remnants of an accreted galaxy. Despite its uniqueness, the deepest images…
MOND prediction of a new giant shell in the elliptical galaxy NGC3923
M. Bílek, K. Bartošková, I. Ebrová +1
Context. Stellar shells, which form axially symmetric systems of arcs in some elliptical galaxies, are most likely remnants of radial minor mergers. They are observed up a radius o…