Results 21 to 30 of about 86,451 (281)

VLT observations of the Central Compact Object in the Vela Jr. supernova remnant [PDF]

, 2007
X-ray observations have unveiled the existence of enigmatic point-like sources at the center of young (a few kyrs) supernova remnants. These sources, known as Central Compact Objects (CCOs), are thought to be neutron stars produced by the supernova ...
A. De Luca, A. Pellizzoni, Aschenbach, Aschenbach, Caraveo, D. Sester, Fesen, Fitzpatrick, Haberl, Hester, Israel, Israel, Kargaltsev, Kirkpatrick, Landolt, Legget, Mereghetti, Mereghetti, Michael, Mignani, Mignani, Motch, P. A. Caraveo, Parker, Pavlov, Pellizzoni, Persson, Predehl, R. P. Mignani, Reynoso, S. Mereghetti, S. Zaggia, Sanwal, Slane, Stappers, Stetson, van Kerkwijk, Wang, Wang, Woods, Zaggia   +40 more
core   +1 more source

Optical and infrared properties of V1647 Orionis during the 2003-2006 outburst. I The reflection nebula

, 2007
Aims: The recent outburst of the young eruptive star V1647 Orionis has produced a spectacular appearance of a new reflection nebula in Orion (McNeil's nebula). We present an optical/near infrared investigation of McNeil's nebula.
Acosta-Pulido, Appenzeller, Aspin, Bastien, Briceño, D. Fedele, Eislöffel, Fedele, Gerakines, Goodrich, Kastner, Kenyon, Kenyon, Kirkpatrick, Lenzen, Lucas, M. E. van den Ancker, M. G. Petr-Gotzens, Magnier, Muzerolle, N. Ageorges, Ojha, Ojha, P. Rafanelli, Padgett, Reipurth, Rousset, Serkowski, Smith, Stetson, Vacca, Whitney, Whittet, Zinnecker   +33 more
core   +1 more source

Nebula

Journal of Medical Humanities
Review of: Nebula Curated by Alessandro Rabottini and Leonardo Bigazzi, Complesso dell’Ospedaletto, Venice, 17 April–24 November ...
  +5 more sources

Two-zone model for the broadband Crab nebula spectrum: microscopic interpretation

EPJ Web of Conferences, 2017
We develop a simple two-zone interpretation of the broadband baseline Crab nebula spectrum between 10−5 eV and ~ 100 TeV by using two distinct log-parabola energetic electrons distributions.
Fraschetti F., Pohl M.
doaj   +1 more source

Synchrotron heating by a fast radio burst in a self-absorbed synchrotron nebula and its observational signature

, 2016
Fast radio bursts (FRBs) are mysterious transient sources. If extragalactic, as suggested by their relative large dispersion measures, their brightness temperatures must be extremely high. Some FRB models (e.g.
Dai, Zi-Gao, Yang, Yuan-Pei, Zhang, Bing
core   +1 more source

Complex molecules in the Orion Kleinmann-Low nebula

BIO Web of Conferences, 2014
In the framework of the delivery to the early Earth of extraterrestrial molecules, we have studied complex molecular species toward the Orion Kleinmann-Low nebula. This nebula is rich in molecules as well as in nascent stars and planetary systems.
Despois D., Brouillet N., Peng T.-C., Baudry A., Favre C., Combes F., Wlodarczak G., Guélin M.   +7 more
doaj   +1 more source

High-resolution Radio Study of the Dragonfly Pulsar Wind Nebula Powered by PSR J2021+3651

The Astrophysical Journal, 2023
The Dragonfly Nebula (G75.2+0.1) powered by the young pulsar J2021+3651 is a rare pulsar wind nebula (PWN) that shows double tori and polar jets enclosed by a bow-shock structure in X-rays.
Ruolan Jin, C.-Y. Ng, Mallory S. E. Roberts, Kwan-Lok Li   +3 more
doaj   +1 more source

The long-period Galactic Cepheid RS Puppis - II. 3D structure and mass of the nebula from VLT/FORS polarimetry

, 2012
The long-period Cepheid RS Pup is surrounded by a large dusty nebula reflecting the light from the central star. Due to the changing luminosity of the central source, light echoes propagate into the nebula.
A. Mérand, Appenzeller, Barmby, Berdnikov, Bond, Caputo, D. Bersier, Deasy, Draine, Draine, Draine, Draine, E. Pompei, Fouqué, Gallenne, Goldman, H. E. Bond, Havlen, Henyey, Keller, Kervella, Kervella, Krügel, L. Szabados, M. Cracraft, Marengo, Neilson, Neilson, P. Fouqué, P. Kervella, Patat, R. J. Havlen, Simmons, Sparks, Sparks, Sugerman, W. B. Sparks, Weingartner, Westerlund, Westerlund, White, Zapatero Osorio   +41 more
core   +2 more sources

Surveying Planetary Nebulae Central Stars for Close Binaries: Constraining Evolution of Central Stars Based on Binary Parameters

Galaxies, 2018
The increase in discovered close binary central stars of planetary nebulae is leading to a sufficiently large sample to begin to make broader conclusions about the effect of close binary stars on common envelope evolution and planetary nebula formation ...
Todd Hillwig
doaj   +1 more source

Physical Structure of Planetary Nebulae. I. The Owl Nebula

, 2003
The Owl Nebula is a triple-shell planetary nebula with the outermost shell being a faint bow-shaped halo. We have obtained deep narrow-band images and high-dispersion echelle spectra in the H-alpha, [O III], and [N II] emission lines to determine the ...
Arturo Manchado, Cahn J. H., Hua C. T., Icke V., Karen B. Kwitter, Martn A. Guerrero, Napiwotzki R., Patriarchi P., Pottasch S. R., Proisy P., Sabbadin F., You-Hua Chu   +11 more
core   +1 more source