Results 111 to 120 of about 141,416 (254)

Data mining for dwarf novae in SDSS, GALEX and astrometric catalogues [PDF]

, 2009
By cross-matching blue objects from the Sloan Digital Sky Survey with Galaxy Evolution Explorer and the astrometric catalogues USNO-B1.0, GSC2.3 and CMC14, 64 new dwarf nova candidates with one or more observed outbursts have been identified. 14 of these
P. Wils, B. Gaensicke, A. Drake, J. Southworth   +3 more
semanticscholar   +1 more source

The EUVE Observations of Dwarf Novae [PDF]

International Astronomical Union Colloquium, 1996
In the standard theory of dwarf novae in outburst, the boundary layer region between the inner edge of the accretion disk and the white dwarf surface radiates primarily in the extreme ultraviolet. Using EUVE, observers have been able to obtain spectra with sufficient spectral resolution to characterize accurately the emission from several dwarf novae ...
openaire   +1 more source

A Transient Radio Jet in an Erupting Dwarf Nova [PDF]

Science, 2008
Astrophysical jets seem to occur in nearly all types of accreting objects, from supermassive black holes to young stellar objects. On the basis of x-ray binaries, a unified scenario describing the disc/jet coupling has evolved and been extended to many accreting objects.
Kording, Elmar, Rupen, Michael, Knigge, Christian, Fender, Rob, Dhawan, Vivek, Templeton, Matthew, Muxlow, Tom   +6 more
openaire   +5 more sources

New Species of Babinskaiidae (Insecta: Neuroptera) From the Mid‐Cretaceous of Myanmar and the Morphological Divergence of the Family Across the Cretaceous

Ecology and Evolution, Volume 16, Issue 3, March 2026.
Two new species of Babinskaiidae are reported from the mid‐Cretaceous of Myanmar and the morphological divergence of the family across the Cretaceous is quantified. The Babinskaiidae assemblages from the Lower Cretaceous Crato Formation and the Upper Cretaceous Kachin amber are separated by a pronounced morphological divergence in both overall size and
Xiumei Lu, Yunlin Luo, De Zhuo, Xingyue Liu   +3 more
wiley   +1 more source

Outburst Properties of V1504 Cyg and V344 Lyr

Acta Polytechnica CTU Proceedings, 2015
I begin by reviewing dwarf novae and the disk instability theory, and then present an overview of three ideas for producing superoutbursts in the SU UMa stars − the thermal tidal instability, irradiation-induced secondary mass overflow, and the plain ...
J. K. Cannizzo
doaj   +1 more source

Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. II: The Second Year (2009-2010)

, 2010
As an extension of the project in Kato et al. (2009, arXiv:0905.1757), we collected times of superhump maxima for 61 SU UMa-type dwarf novae mainly observed during the 2009-2010 season.
Akazawa, Hidehiko, Bolt, Greg, Boyd, David, Brady, Steve, Crawford, Tim, de Miguel, Enrique, Dubovsky, Pavol A., Dvorak, Shawn, Fujii, Daichi, Gomez, Tomas L., Hambsch, Franz-Josef, Henden, Arne, Hynek, Tomas, Iino, Eriko, Imada, Akira, Imamura, Kazuyoshi, Ishioka, Ryoko, Itoh, Hiroshi, Kato, Taichi, Kiyota, Seiichiro, Kobayashi, Hiroshi, Krajci, Thomas, Kudzej, Igor, Kunitomi, Nanae, Kuramoto, Tetsuya, Maehara, Hiroyuki, Masi, Gianluca, Matsumoto, Katsura, Miller, Ian, Miyashita, Atsushi, Monard, Berto, Morelle, Etienne, Muyllaert, Eddy, Nakagawa, Shinichi, Nelson, Peter, Nogami, Daisaku, Noguchi, Ryo, Nose, Mikiha, Novak, Rudolf, Ogura, Kazuyuki, Ohshima, Tomohito, Ohtomo, Sachi, Oksanen, Arto, Pavlenko, Elena P., Pickard, Roger D., Richmond, Michael, Ringwald, Frederick A., Ruiz, Javier, Shears, Jeremy, Simonsen, Mike, Staels, Bart, Stockdale, Chris, Stubbings, Rod, Takagi, Ryosuke, Tanabe, Kenji, Uemura, Makoto, Voloshina, Irina B., Yamashita, Kousei, Yanagisawa, Hirofumi   +58 more
core   +1 more source

A FAR ULTRAVIOLET SPECTROSCOPIC EXPLORER SURVEY OF HIGH-DECLINATION DWARF NOVAE [PDF]

, 2009
We present a spectral analysis of the Far Ultraviolet Spectroscopic Explorer (FUSE) spectra of eight high-declination dwarf novae (DNs) obtained from a Cycle 7 FUSE survey.
P. Godon, E. Sion, P. Barrett, P. Szkody
semanticscholar   +1 more source

OGLE-BLG504.12.201843: a possible extreme dwarf nova

Monthly Notices of the Royal Astronomical Society, 2022
ABSTRACT We present the analysis of existing optical photometry and new optical spectroscopy of the candidate cataclysmic variable star OGLE-BLG504.12.201843. As was shown previously, this object has an orbital period of 0.523419 d and exhibits year-long outbursts with a mean period of 973 d.
Camille Landri, Ondrej Pejcha, Michał Pawlak, Andrzej Udalski, Jose L Prieto, Manuel Barrientos, Jay Strader, Subo Dong   +7 more
openaire   +4 more sources

Dose‐Dependent Effects of Biochar on Soil Revealed by Fast Field‐Cycling (FFC) NMR: From Molecular Water Dynamics to Soil Functionality

Magnetic Resonance in Chemistry, Volume 64, Issue 3, Page 349-364, March 2026.
Dose–response of biochar in a clay soil: fifteen mixtures (fBC 0–1) reveal nonlinear thresholds (pH/EC) and sharp WHC gains near fBC ≈ 0.3–0.5. Coupled FT‐IR and FFC‐NMR (0.01–10 MHz; ModelFree τc distributions) link water dynamics to soil functionality.
Calogero Librici, Paola Bambina, Ettore Madonia, Veronica Ciaramitaro, Delia Francesca Chillura Martino, Paolo Lo Meo, Pellegrino Conte   +6 more
wiley   +1 more source

Novae: An Important Source of Lithium in the Galaxy

The Astrophysical Journal
The source of the Galactic lithium (Li) has long been a puzzle. With the discovery of Li in novae, extensive research has been conducted. However, there still exists a significant disparity between the observed abundance of Li in novae and the existing ...
Jun Gao, Chunhua Zhu, Guoliang Lü, Jinlong Yu, Lin Li, Helei Liu, Sufen Guo   +6 more
doaj   +1 more source