Results 11 to 20 of about 28,676 (218)
SBS 1150+599A: an extremely oxygen-poor planetary nebula in the Galactic halo? [PDF]
, 2001 We report results of a spectrophotometric study of SBS 1150+599A and discuss the nature of this object based upon our data. Our study shows that SBS 1150+599A is most probably a planetary nebula located in the Galactic halo and not a cataclysmic variable
Aguilar +59 more
core +2 more sources
A Preferred Orientation Angle for Bipolar Planetary Nebulae
Galaxies, 2020 We present preliminary results from measuring Galactic orientation angles of 766 elliptical and bipolar Planetary Nebulae (PNe) in the Hong Kong/Australian Astronomical Observatory/Strasbourg Observatory H-alpha Planetary Nebula research platform and ...
Andreas Ritter, Quentin A. Parker
doaj +1 more source
The Real-Time Evolution of V4334 Sgr
Galaxies, 2018 V4334 Sgr (Sakurai’s object) is an enigmatic evolved star that underwent a very late thermal pulse a few years before its discovery in 1996. It ejected a new hydrogen-deficient nebula in the process. The source has been observed continuously since,
Peter A. M. van Hoof +7 more
doaj +1 more source
Spatial Distributions of Multiple Dust Components in the PPN/PN Dust Shells [PDF]
, 2000 We investigate spatial distributions of specific dust components in the circumstellar shells of a proto-planetary nebula candidate, HD 179821, and a planetary nebula, BD$+30^{\circ}$3639, by means of spectral imaging.
Dayal, Aditya +7 more
core +3 more sources
Space Telescope Imaging Spectrograph Parallel Observations of the Planetary Nebula M94-20 [PDF]
, 1999 The planetary nebula M94--20 in the Large Magellanic Cloud was serendipitously observed with the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope as part of the Hubble Space Telescope Archival Pure Parallel Program.
Morgan D. H. +2 more
core +2 more sources
SMC SMP 24: A Newly Radio-Detected Planetary Nebula in the Small Magellanic Cloud [PDF]
Serbian Astronomical Journal, 2010 In this paper we report a new radio-continuum detection of an extragalactic planetary nebula (PN): SMC~SMP~24. We show the radio-continuum image of this PN and present the measured radio data.
Bojicic, I. S. +2 more
doaj +3 more sources
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. +7 more
doaj +1 more source
Stable Nitrogen Isotope Analysis of Amino Acids by Orbitrap Mass Spectrometry: Application for Extraterrestrial Samples. [PDF]
Rapid Commun Mass SpectromABSTRACT Background Obtaining isotopic data on soluble organic compounds, such as amino acids, in extraterrestrial samples is crucial for understanding their origins, prebiotic chemistry, and potential contamination. Conventional GC‐IRMS requires grams of material to measure isotopic compositions, limiting the analysis of low‐concentration organics in ...
McIntosh OM +9 more
europepmc +2 more sources
Integral Field Spectroscopy of Planetary Nebulae with MUSE
Galaxies, 2020 The Multi-Unit Spectroscopic Explorer (MUSE) is a large integral field unit mounted on the ESO Very Large Telescope. Its spatial (60 arcsecond field) and wavelength (4800–9300Å) coverage is well suited to detailed imaging spectroscopy of extended ...
Jeremy R. Walsh, Ana Monreal-Ibero
doaj +1 more source
Detecting Planets in Planetary Nebulae [PDF]
, 1998 We examine the possibility of detecting signatures of surviving Uranus-Neptune-like planets inside planetary nebulae. Planets that are not too close to the stars, orbital separation larger than about 5 AU, are likely to survive the entire evolution of ...
Soker, Noam
core +2 more sources