Results 71 to 80 of about 4,667,827 (292)

Spectropolarimetric Evidence of Asymmetric Outburst in the Fast Nova V1494 Aquilae

open access: yesThe Astrophysical Journal, 2001
We present our extended polarimetric observations of a fast nova from the premaximum to transition stages. The observations were made for V1494 Aquilae (=Nova Aql 1999 No. 2) at the Dodaira Observatory of the National Astronomical Observatory of Japan between 1999 December 2 and 2000 March 29. We discovered that the light from the nova had already been
K. S. Kawabata   +11 more
openaire   +1 more source

Multiwavelength observations of V407 Lupi (ASASSN-16kt) – a very fast nova erupting in an intermediate polar [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
39 pages, 32 figures, 23 tables, accepted for publication in ...
E Aydi   +21 more
openaire   +4 more sources

Classical novae and recurrent novae: General properties [PDF]

open access: yes, 1993
We describe the observable characteristics of classical novae and recurrent novae obtained by different techniques (photometry, spectroscopy, and imaging) in all the available spectral ranges.
Selvelli, Pierluigi   +2 more
core  

Microscale Patterning of Ultrahigh‐Viscosity Metallic‐Polymer Composites via Embedded Droplet Writing

open access: yesAdvanced Functional Materials, EarlyView.
A hybrid additive manufacturing platform integrates direct droplet writing of metallic composite with VAT photopolymerization to fabricate architected soft magnetic composites. This approach enables microscale patterning of high‐viscosity materials for programmable actuators, adaptive fluidic devices, and switchable adhesives, offering tunable ...
Yeowon Yoon   +4 more
wiley   +1 more source

A Multiwavelength Light-curve Analysis of the Classical Nova KT Eri: Optical Contribution from a Large Irradiated Accretion Disk

open access: yesThe Astrophysical Journal
KT Eri is a classical nova that went into outburst in 2009. Recent photometric analysis in quiescence indicates a relatively longer orbital period of 2.6 days, so that KT Eri could host a very bright accretion disk during the outburst like in the ...
Izumi Hachisu   +2 more
doaj   +1 more source

The critical mass ratio for W UMa-type contact binary systems [PDF]

open access: yesSerbian Astronomical Journal
Contact binaries are close binary systems in which both components fill their inner Roche lobes so that the stars are in direct contact, and in potential mass and energy exchange.
Arbutina Bojan, Wadhwa Surjit
doaj   +1 more source

Multiwavelength observations of nova SMCN 2016-10a – one of the brightest novae ever observed [PDF]

open access: yes, 2017
We report on multiwavelength observations of nova SMCN 2016-10a. The present observational set is one of the most comprehensive for any nova in the Small Magellanic Cloud, including: low, medium, and high resolution optical spectroscopy and ...
E. Aydi   +19 more
semanticscholar   +1 more source

A Novel Drug‐Loaded Porous Parylene Electrode for Targeted Anti‐Inflammatory Therapy and Hearing Preservation in Cochlear Implantation

open access: yesAdvanced Healthcare Materials, EarlyView.
A porous parylene‐coated electrode loaded with dexamethasone was developed to reduce inflammation after cochlear implantation. In guinea pigs, the device provided sustained drug release, maintained biocompatibility, improved auditory brainstem response thresholds, and reduced inflammatory cell infiltration and TNF‐α expression.
Chi‐Chieh Chang   +11 more
wiley   +1 more source

A Hubble Space Telescope survey for novae in M87 – III. Are novae good standard candles 15 d after maximum brightness? [PDF]

open access: yes, 2017
Ten weeks of daily imaging of the giant elliptical galaxy M87 with the Hubble Space Telescope (HST) has yielded 41 nova light curves of unprecedented quality for extragalactic cataclysmic variables. We have recently used these light curves to demonstrate
M. Shara   +15 more
semanticscholar   +1 more source

Recurrent novae [PDF]

open access: yes, 1993
Recurrent novae seem to be a rather inhomogeneous group: T CrB is a binary with a M III companion; U Sco probably has a late dwarf as companion. Three are fast novae; two are slow novae. Some of them appear to have normal chemical composition; others may
Selvelli, Pierluigi, Hack, Margherita
core  

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