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The Radio Surface-brightness-to-Diameter Relation for Galactic Supernova Remnants: Sample Selection and Robust Analysis with Various Fitting Offsets
In this paper, we present new empirical radio surface-brightness-to-diameter (?-D) relations for supernova remnants (SNRs) in our Galaxy. We also present new theoretical derivations of the ?-DExpand
Modified equipartition calculation for supernova remnants
Determination of the magnetic field strength in the interstellar medium is one of the most complex tasks of contemporary astrophysics. We can only estimate the order of magnitude of the magneticExpand
ON THE TIMESCALE FORCING IN ASTROBIOLOGY
SUMMARY: We investigate the efiects of correlated global regulation mecha-nisms, especially Galactic gamma-ray bursts (GRBs), on the temporal distributionof hypothetical inhabited planets, usingExpand
Astrobiological Complexity with Probabilistic Cellular Automata
TLDR
It is argued that probabilistic cellular automata (PCA) represent the best quantitative framework for modeling the astrobiological history of the Milky Way and its Galactic Habitable Zone and how numerical results could offer a cautious rationale for continuation of practical SETI searches is demonstrated. Expand
The supernova remnant population of the Small Magellanic Cloud
Aims.We present a comprehensive study on the supernova remnant (SNR) population of the Small Magellanic Cloud (SMC). We measured multiwavelength properties of the SMC SNRs and compare them to thoseExpand
The Σ-D analysis of recently detected radio planetary nebulae in the Magellanic Clouds
Aims. We investigate and analyze the radio surface brightness to diameter (∑-D) relation for recently detected, bright radio-continuum planetary nebulae (PNe) in the Magellanic Clouds (MC). Methods.Expand
A SEARCH FOR CANDIDATE RADIO SUPERNOVA REMNANTS IN THE NEARBY IRREGULAR STARBURST GALAXIES NGC 4214 AND NGC 4395
We present the results of a search for new candidate radio su­pernova remnants (SNRs) in the nearby starburst irregular galaxies NGC 4214 and NGC 4395 using archived radio observations made with theExpand
Radio planetary nebulae in the Large Magellanic Cloud
We present 21 new radio-continuum detections at catalogued planetary nebula (PN) positions in the Large Magellanic Cloud (LMC) using all presently available data from the Australia Telescope OnlineExpand
Galactic punctuated equilibrium: how to undermine Carter's anthropic argument in astrobiology.
TLDR
It is concluded that drawing far-reaching conclusions about the scarcity of extraterrestrial intelligence and the prospects of the efforts to detect it on the basis of Carter's argument is unwarranted. Expand
Astrobiological Phase Transition: Towards Resolution of Fermi’s Paradox
TLDR
A model of an astrobiological phase transition of the Milky Way, based on the concept of the global regulation mechanism(s), shows that the phase-transition model offers a rational motivation for continuation and extension of the present-day Search for ExtraTerrestrial Intelligence (SETI) endeavours. Expand
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