Results 101 to 110 of about 50,898 (280)
Imaging of the CO Snow Line in a Solar Nebula Analog [PDF]
Science, 2013 Solar Snow Lines Models of the formation of our solar system have suggested that condensation lines, or snow lines—the distance from a star beyond which a gas or a liquid can condense into the solid phase—are favorable locations for planet formation ...
C. Qi +8 more
semanticscholar +1 more source
High velocity structures in, and the X-ray emission from the LBV nebula around Eta Carinae [PDF]
, 2000 The Luminous Blue Variable star Eta Carinae is one of the most massive stars known. It underwent a giant eruption in 1843 in which the Homunculus nebula was created. ROSAT and ASCA data indicate the existence of a hard and a soft X-ray component which appear to be spatially distinct: a softer diffuse shell of the nebula around Eta Carinae and a harder ...
arxiv +1 more source
Bulbs and Biopower: Managing Produce and Price in the Age of Agri‐Logistics
Antipode, EarlyView.Abstract This paper deploys the material and discursive politics of storage as a lens into agrarian change in rural India. Focusing on onions (Allium cepa), a price volatile crop and a kitchen staple, it maps out the contested meanings of and motivations for storage among growers, governments, and agri‐logistics companies. Specifically, this paper asks
Tanya Matthan
wiley +1 more source
Radio continuum study of the Large Magellanic Cloud supernova remnant Honeycomb Nebula [PDF]
Serbian Astronomical JournalWe present the first and deepest Australia Telescope Compact Array radio continuum images of the Honeycomb Nebula at 2000 and 5500MHz solely from archival data.
Alsaberi R.Z.E. +6 more
doaj +1 more source
Rotation of the Andromeda Nebula from a Spectroscopic Survey of Emission Regions
, 1970 Spectia of sixty-seven H Ir regions from 3 to 24 kpc from the nucleus of M31 have been obtained with the DTM image-tube spectrograph at a dispersion of 135 A mm '. Radial velocities, principally from Ha, have been determined with an accuracy of 10 km sec
V. Rubin, W. Ford
semanticscholar +1 more source
Origin and loss of nebula-captured hydrogen envelopes from ‘sub’- to ‘super-Earths’ in the habitable zone of Sun-like stars [PDF]
, 2014 We investigate the origin and loss of captured hydrogen envelopes from protoplanets having masses in a range between ‘sub-Earth’-like bodies of 0.1 M⊕ and ‘super-Earths’ with 5 M⊕ in the habitable zone at 1 au of a Sun-like G star, assuming that their ...
H. Lammer +10 more
semanticscholar +1 more source
Humour as a Pedagogical Tool: Evidence and Implications for Critical Geography
Antipode, EarlyView.Abstract In this article, we elaborate the results of a focused empirical study on the use of humour in teaching undergraduate geography courses. Through semi‐structured interviews and weekly reflections submitted by students, we delve into a diverse array of experiences and perceptions of humour as a pedagogical tool.
Ben A. Gerlofs, Xuechao Zheng
wiley +1 more source
Business ethics, law and zemiology: The criminology of social and environmental harm
Business Ethics, the Environment &Responsibility, EarlyView.Abstract This speculative paper introduces zemiology, an extension of radical criminology which explores why many ‘crimes’ are not ‘illegal’ by focussing on the problem of ‘social harm’. Zemiology insists that we should begin with social or environmental problems, and not allow their foreclosure by the distraction of whether a particular practice is ...
Robin Klimecki, Martin Parker
wiley +1 more source
The Astrophysical JournalHD 148937 is a peculiar massive star (Of?p) with a strong magnetic field (1 kG). The hourglass-shaped emission nebula NGC 6164/5 surrounds this star. This nebula is presumed to originate from episodic mass-loss events of the central O-type star, but the ...
Beomdu Lim +3 more
doaj +1 more source
Classification of ISO SWS 01 spectra of proto-planetary nebulae: a search for precursors of planetary nebulae with [WR] central stars [PDF]
arXiv, 2002 We have analyzed ISO SWS 01 observations for 61 proto-planetary nebulae candidates and classified their spectra according to their dominant chemistry. On the basis of our classification and the more general classification of SWS 01 spectra by Kraemer et al.
arxiv