Results 91 to 100 of about 493,128 (267)

Solving the kilo-second QPO problem of the intermediate polar GK Persei [PDF]

, 1999
We detect the likely optical counterpart to previously reported X-ray QPOs in spectrophotometry of the intermediate polar GK Persei during the 1996 dwarf nova outburst. The characteristic timescales range between 4000--6000 s.
Morales-Rueda, L., Roche, P., Still, M. D.   +2 more
core   +3 more sources

AT Cnc: A SECOND DWARF NOVA WITH A CLASSICAL NOVA SHELL [PDF]

, 2012
We are systematically surveying all known and suspected Z Cam-type dwarf novae for classical nova shells. This survey is motivated by the discovery of the largest known classical nova shell, which surrounds the archetypal dwarf nova Z Camelopardalis. The
M. Shara, T. Mizusawa, P. Wehinger, D. Zurek, Christopher D. Martin, J. Neill, K. Forster, M. Seibert   +7 more
semanticscholar   +1 more source

Conservation challenges and opportunities for native apple (Malus) species in Canada

PLANTS, PEOPLE, PLANET, Volume 8, Issue 1, Page 134-156, January 2026.
Apple, one of the world's most widely cultivated and economically important fruit crops, has two wild relatives native to Canada. In this review, we describe the importance of these native apple species to Indigenous heritage and the current threats the species faces due to pests, diseases, and habitat loss.
Terrell T. Roulston, Chelsey Geralda Armstrong, Mckenna Batstone, Kyle Bobiwash, Sylvia Grace Borda, Dionne Bunsha, Claudia Ciotir, Brian C. Husband, Paul Manning, Tara L. Moreau, Amritpal S. Singh, Tyler W. Smith, Jens Ulrich, Zoë Migicovsky   +13 more
wiley   +1 more source

CSS100603:112253−111037: a helium-rich dwarf nova with a 65 min orbital period [PDF]

, 2012
We present time-resolved optical spectroscopy of the dwarf nova CSS100603:112253−111037. Its optical spectrum is rich in helium, with broad, double-peaked emission lines produced in an accretion disc. We measure a line flux ratio He i λ5876/Hα = 1.49 ± 0.
E. Breedt, B. Gänsicke, T. Marsh, D. Steeghs, A. Drake, C. Copperwheat   +5 more
semanticscholar   +1 more source

Exploring the complexities of cooperative breeding: insights from African wild dog packs

Journal of Zoology, Volume 328, Issue 1, Page 16-29, January 2026.
Across 14 years of monitoring African wild dog packs in Savé Valley Conservancy, Zimbabwe, we found that younger and larger packs were significantly more likely to produce multiple litters, with second‐born pups showing higher survival. Pup survival also increased with pack size, rainfall, and alpha female age, highlighting the adaptive benefits of ...
R. J. Groom, J. Comley, A. Wolton, N. Ngwenya, R. Mandisodza‐Chikerema, J. P. Watermeyer   +5 more
wiley   +1 more source

A Demarcation Criterion for Hydrogen Burning of Millinovae

The Astrophysical Journal
Millinovae are a new class of transient supersoft X-ray sources with no clear signature of mass ejection. They show similar triangle shapes of V / I band light curves with 1000 times fainter peaks than typical classical novae. Maccarone et al.
Izumi Hachisu, Mariko Kato
doaj   +1 more source

Dwarf nova oscillations and quasi-periodic oscillations in cataclysmic variables - VII. OY Carinae and oscillations in dwarf novae in quiescence

, 2009
We have observed dwarf nova oscillations (DNOs) in OY Car during outburst, down through decline and beyond; its behaviour is similar to what we have previously seen in VW Hyi, making it only the second dwarf nova to have DNOs late in outburst that ...
Brian Warner, Bruch, Cheng, Cordova, Eracleous, Godon, Greenhill, Hakala, Marsh, Mason, O'Donoghue, Paczynski, Pandel, Pandel, Patrick A. Woudt, Patterson, Piro, Pretorius, Ramsay, Ramsay, Saito, Schoembs, Sion, Sion, Sion, Tovmassian, Tovmassian, Urban, Vogt, Warner, Warner, Warner, Warner, Warner, Warner, Warner, Warner, Wheatley, Woudt, Woudt   +39 more
core   +1 more source

The 2011 Outburst of Recurrent Nova T Pyx: X-ray Observations Expose the White Dwarf Mass and Ejection Dynamics [PDF]

, 2014
The recurrent nova T Pyx underwent its sixth historical outburst in 2011, and became the subject of an intensive multi-wavelength observational campaign.
Chomiuk, Laura, Krauss, Miriam I., Kuulkers, Erik, Mioduszewski, Amy J., Mukai, Koji, Nelson, Thomas, Osborne, Julian P., Page, Kim L., Roy, Nirupam, Rupen, Michael P., Sokoloski, J. L., Weston, Jennifer   +11 more
core   +3 more sources

Serendipitous Kepler observations of a background dwarf nova of SU UMa type [PDF]

, 2012
We have discovered a dwarf nova (DN) of type SU UMa in Kepler data which is 7.0 arcsec from the G-type exoplanet survey target KIC 4378554. The DN appears as a background source in the pixel aperture of the foreground G star. We extracted only the pixels
T. Barclay, M. Still, J. Jenkins, S. Howell, R. Roettenbacher   +4 more
semanticscholar   +1 more source

‘Aint We Women?’ A Narrative Review of Intensive and Acute Care Experiences of Black Women Through an Intersectional Lens

Nursing in Critical Care, Volume 31, Issue 1, January 2026.
ABSTRACT Background Research on gender and racial disparities in intensive care is emerging. Women experience less intensity of care, less utilisation of critical care resources and poorer overall health outcomes. These disparities may become more pronounced when race is considered.
Elizabeth Kusi‐Appiah, Oleska Rewa, Saleema Allana, Carmel Montgomery, Elisavet Papathanassoglou   +4 more
wiley   +1 more source