Results 111 to 120 of about 28,676 (218)

On the progenitor of the type Ia supernova remnant 0509-67.5

The Open Journal of Astrophysics
Based on the iron and hydrogen similar elliptical morphologies of the type Ia supernova (SN Ia) remnant (SNR)~0509-67.5, I suggest that the ambient gas shaped the SN ejecta, that it is a remnant of an old planetary nebula, and that the explosion was ...
Noam Soker
doaj   +1 more source

Polarization due to dust scattering in the planetary nebula Cn1-1 [PDF]

The peculiar emission-line object Cn1-1 (=HDE330036=PK330+4 degrees 1), classified both as a symbiotic star and as a planetary nebula, was detected by the Infrared Astronomical Satellite (IRAS) as a strong source of far-infrared dust in the system. Bhatt
Bhatt, Harish C.
core   +1 more source

The chemical composition of TS 01, the most oxygen-deficient planetary nebula [PDF]

, 2010
G. Stasińska, C. Morisset, G. Tovmassian, T. Rauch, M. G. Richer, María Teresa Cuamatzi Peña, R. Szczerba, T. Decressin, C. Charbonnel, L. R. Yungelson, R. Napiwotzki, S. Simón‐Díaz, L. Jamet   +12 more
openalex   +1 more source

Discovery of Faint Nebulosity around a Z Camelopardalis–type Cataclysmic Variable in Antlia: Nova Shell or Ancient Planetary Nebula?

The Astronomical Journal
We report our discovery of a faint nebula surrounding a previously little-studied 15th mag variable star, ASASSN-19ds, in the Southern Hemisphere constellation Antlia. Spectra verify that the star is a cataclysmic variable (CV).
Howard E. Bond, Dana Patchick, Daniel Stern, Jonathan Talbot, John R. Thorstensen   +4 more
doaj   +1 more source

A Dust-Scattering Model for M1-92: A Revised Estimate of the Mass Distribution and Inclination

Galaxies
Preplanetary nebulae (PPNe) are formed from mass-ejecting late-stage AGB stars. Much of the light from the star gets scattered or absorbed by dust particles, giving rise to the observed reflection nebula seen at visible and near-IR wavelengths ...
Yun Qi Li, Mark R. Morris, Raghvendra Sahai   +2 more
doaj   +1 more source

The IUE Spectrum of the Binary Nucleus of the Planetary Nebula NGC 1514 [PDF]

, 1997
W. A. Feibelman
openalex   +1 more source

A Near-infrared Spectral Library of Very Young Brown Dwarfs and Planetary Mass Objects in the Orion Nebula Cluster

The Astrophysical Journal
Age-benchmark brown dwarf and planetary-mass-object spectroscopy is key to characterizing substellar evolution. In this paper, we present the JHK medium-resolution ( R ∼ 3000) spectra of 25 7–76 M _Jup (spectral types L3.0–M6.0) brown dwarfs and ...
Elena Manjavacas, Mario Gennaro, Sarah Betti, Laurent Pueyo, William O. Balmer, Massimo Robberto   +5 more
doaj   +1 more source

The <i>Herschel</i> Planetary Nebula Survey (HerPlaNS): A Comprehensive Dusty Photoionization Model of NGC6781. [PDF]

Astrophys J Suppl Ser, 2017
Otsuka M, Ueta T, van Hoof PAM, Sahai R, Aleman I, Zijlstra AA, Chu YH, Villaver E, Leal-Ferreira ML, Kastner J, Szczerba R, Exter KM.   +11 more
europepmc   +1 more source

Spectral index of the H2O-maser-emitting planetary nebula IRAS 17347 — 3139 [PDF]

, 2005
J. F. Gómez, I. De Gregorio-Monsalvo, J. E. J. Lovell, G. Anglada, L. F. Miranda, O. Suárez, J. M. Torrelles, Y. Gómez   +7 more
openalex   +1 more source

ALMA Observations of the Water Fountain Pre-Planetary Nebula IRAS 16342-3814: High-Velocity Bipolar Jets and an Expanding Torus. [PDF]

Astrophys J Lett, 2017
Sahai R, Vlemmings WH, Gledhill T, Sánchez Contreras C, Lagadec E, Nyman LÅ, Quintana-Lacaci G.   +6 more
europepmc   +1 more source