Results 11 to 20 of about 12,515 (261)
The Integral Field View of the Orion Nebula [PDF]
Advances in Astronomy, 2014 This paper reviews the major advances achieved in the Orion Nebula through the use of integral field spectroscopy (IFS). Since the early work of Vasconcelos and collaborators in 2005, this technique has facilitated the investigation of global properties ...
Adal Mesa-Delgado
doaj +4 more sources
Which Stars Are Ionizing the Orion Nebula? [PDF]
The Astrophysical Journal, 2017 Abstract The common assumption that is the dominant ionizing source for the Orion Nebula is critically examined. This assumption underlies much of the existing analysis of the nebula. In this paper we establish through comparison of the relative strengths of emission lines
C. R. O’Dell +2 more
openaire +6 more sources
The N ii spectrum of the Orion nebula [PDF]
Monthly Notices of the Royal Astronomical Society, 2005 12 pages, 7 figures, to appear in ...
Escalante, Vladimir +1 more
openaire +4 more sources
Fine-Scale Temperature Fluctuations in the Orion Nebula and thet2Problem [PDF]
, 2003 We present a high spatial resolution map of the columnar electron temperature (Tc) of a region to the south west of the Trapezium in the Orion Nebula.
C. R. O’dell +2 more
openalex +5 more sources
Orion Revisited - I. The massive cluster in front of the Orion Nebula Cluster
, 2012 The aim of this work is to characterize the stellar population between Earth and the Orion A molecular cloud where the well known star formation benchmark Orion Nebula Cluster (ONC) is embedded.
J. Alves, H. Bouy
openalex +3 more sources
Chemical and genetic characterization of the ungrouped pallasite Lieksa
Meteoritics &Planetary Science, Volume 58, Issue 12, Page 1747-1759, December 2023., 2023 ABSTRACT The meteorite Lieksa was found in 2017 in Löpönvaara, Finland, and later donated to the Finnish Museum of Natural History. Here, we report siderophile element concentrations, genetic isotopic data, and a metal–silicate segregation age for the meteorite.
Emily M. Chiappe +6 more
wiley +1 more source
Photoelectron Photoion Coincidence Spectroscopy of Biradicals
ChemPhysChem, Volume 24, Issue 16, August 15, 2023., 2023 Biradical species are notoriously difficult to detect, due to their open‐shell character and the resulting high reactivity. As reactive intermediates, they are found in flames, in the interstellar medium, and in earths’ atmosphere. Unveiling their electronic structure is of paramount interest to understand their chemistry.
Ingo Fischer, Patrick Hemberger
wiley +1 more source
ChemPlusChem, Volume 88, Issue 5, May 2023., 2023 A metal worker's laboratory: from Georg Agricola, De re Metallica, Libri XII, Basel, 1556, illustrating a reverberatory oven similar to what Carl Wenzel would have used to divide his metals in the 1770s. This Perspective essay discusses Wenzel, who was a chemist and an alchemist with deep knowledge of acids, bases and salts, and he was credited with ...
Curt Wentrup
wiley +1 more source
Review of European, Comparative &International Environmental Law, Volume 32, Issue 1, Page 105-118, April 2023., 2023 Abstract This article compares the framework of environmental public interest litigation in China to the individualized system of judicial review in Germany. It shows that environmental reform requires modern States such as Germany and China to consider certain objective criteria related to the public interest.
Nicholas Campbell
wiley +1 more source
Cloud fragmentation and proplyd-like features in HII regions imaged by HST [PDF]
, 2006 We have analyzed HST ACS and WFPC2 new and archival images of eight HII regions to look for new proto-planetary disks (proplyds) similar to those found in the Orion Nebula.
Allen D. A. +13 more
core +1 more source