Results 41 to 50 of about 3,534,154 (173)

Integrating and assessing metacommunity drivers of ecosystem function and resilience in benthic algal systems

Oikos, Volume 2026, Issue 10, October 2026.
Understanding the scales and mechanisms by which species composition interacts with ecosystem functions is critical for forecasting the effects of environmental perturbations on ecosystem services. However, the linkages between what regulates the ecosystem functions of dispersal‐capable networks of communities (metacommunities) and what regulates a ...
Thomas P. Shannon, Evelyn E. Gaiser
wiley   +1 more source

Gravitational Radiation From Binary Systems With Time Varying Masses

Annalen der Physik, Volume 538, Issue 8, August 2026.
We extend the standard approach pioneered in the works by Peters and Mathews to include the mass loss processes of the binary components, by obtaining the variations due to gravitational radiation of the main physical parameters. As an application of our results we consider gravitational radiation emission in binary magnetar systems.
Teodora M. Matei, Cristian A. Croitoru, Tiberiu Harko   +2 more
wiley   +1 more source

A large HST program: effective temperatures of cataclysmic variable white dwarfs [PDF]

, 2015
We present HST/COS spectroscopy for 40 cataclysmic variables (CVs), observed as part of a 122 orbit HST program. In 31 CVs, the white dwarf (WD) is recognisable through its broad Lyα absorption profile and we measure the WD effective temperatures (Teff ...
Beuermann, K., Townsley, D., Patterson, J., Zorotovic, M., Gaensicke, B., Schreiber, M. R., Henden, A., DE MARTINO, Domitilla, Knigge, C., Sion, E. M., Long, K., Pala, A. F., Szkody, P., Godon, P., Bildsten, L., Marsh, T., Hubeny, I.   +16 more
core  

Discovery of two new faint cataclysmic variables

, 2002
We report on the discovery of two new faint cataclysmic variables. The objects were selected as candidates from two different imaging surveys aimed at the discovery of such faint systems. One survey used color and variability while the other used color
R. Clowes, E. Mason, M. Huber, S. B. Howell   +3 more
core   +1 more source

Unveiling the period-bounce population of cataclysmic variables

Astronomy & Astrophysics
Context. During their secular evolution, cataclysmic variable stars (CVs) evolve from long to short orbital periods (Porb) before reaching a minimum near Porb ∼ 80 min.
Hernández-Díaz S., Stelzer B., Schwope A., Muñoz-Giraldo D., Schreiber M. R., Brink J., Pradeep K. G., Gänsicke B. T., Eracleous M., Szekerczes K., Anderson S. F., Brownstein J. R.   +11 more
doaj   +1 more source

BLOB PARAMETERS OF ACCRETION STREAMS IN MAGNETIC CATACLYSMIC VARIABLES

Odessa Astronomical Publications, 2017
Results of investigations of the autocorrelation functions for two magnetic cataclysmic variables BY Cam and QQ Vul are presented. Significant variations of this characteristic are detected. They are interpreted as caused by variations of the blob length
N. M. Shakhovskoy, I. L. Andronov, S. V. Kolesnikov, A. V. Halevin   +3 more
doaj   +1 more source

The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory

Astronomische Nachrichten, Volume 347, Issue 7, August 2026.
ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth, Paško Roje, Stella Vješnica, Stefan Cikota, Alex J. Brown, Mike Kretlow, Marco Azzaro, Santiago Reinhart, Jesús Aceituno, Harry Dawson, Carsten Denker, Torsten Enßlin, Stephan Geier, Thomas Granzer, Thomas Kupfer, Gianluca Li Causi, Samaya Nissanke, José Luis Ortiz, Fernando Pedichini, Katja Poppenhäger, Axel Schwope   +20 more
wiley   +1 more source

Could cataclysmic variables be sources of gravitational waves?

The detection of gravitational waves has started the field of multi-messenger gravitational wave astronomy. Cataclysmic variables are binary systems that are candidates for gravitational wave emission in the frequency band of space based interferometer ...
Poggiani, Rosa
core   +1 more source

NON-THERMAL EMISSION FROM CATACLYSMIC VARIABLES: IMPLICATIONS ON ASTROPARTICLE PHYSICS

Acta Polytechnica, 2013
We review the lines of evidence that some cataclysmic variables (CVs) are the sources of non-thermal radiation. It was really observed in some dwarf novae in outburst, a novalike CV in the high state, an intermediate polar, polars, and classical novae ...
Vojtech Šimon
doaj   +1 more source

Spectroscopically Identified Cataclysmic Variables from the LAMOST Survey. II. Period Estimates

The Astronomical Journal, 2023
We examine a sample of 340 cataclysmic variables (CVs) from the latest data release of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) survey, along with 18 objects that are newly classified as CVs.
Wen Hou, A-Li Luo, Yi-Qiao Dong, Xiang-Lei Chen, Zhong-Rui Bai   +4 more
doaj   +1 more source