Episode 79 - Przybylski's Star Stuff

Recorded: 15 September 2017
Released: 16 September 2017
Duration: 81 minutes, 31 seconds

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Przybylski's Star in the DSS vis Aladin

Host Paul Carr welcomes Adam Smith and Sam Lichtenstein to talk about Przybylski’s Star, or HD 101065, possibly the weirdest star in astrophysics - even weirder than Boyajian's Star, maybe.

Links

Przybylski's Star in Simbad
Jason Wright's blog series on Przybylski's Star
Antoni Przybylski (1961) - HD 101065-a G0 Star with High Metal Content
Antoni Przybylski (1977) - Is iron present in the atmosphere of HD 101065 ?
D.W. Kurtz (1982) - Rapidly oscillating Ap stars
Martinez and Kurtz (1990) - New observations and a frequency analysis of the extremely peculiar rapidly oscillating Ap star HD 101065
Cowley, et. al. (2000) - Abundances in Przybylski's star
Gopka, et. al. (2007) - On the possible nature of Bp-Ap Stars: an application to HD101065 and HR465
Renson and Manfroid (2009) - Catalogue of Ap, HgMn and Am stars
Joshi, et. al. (2016) - The Nainital-Cape Survey. IV. A search for pulsational variability in 108 chemically peculiar stars.
Chen et. al. (2017) -  A new photometric study of Ap and Am stars in the infrared.
Dzuba, et. al. (2017) - Isotope shift and search for metastable superheavy elements in astrophysical data

Jerry Pournelle

War is a Racket
RIP Jerry Pournelle
Episode 80 discussion thread

Recommendations

Paul - Alban Berg String Quartet - late Mozart quartets
Sam - Salvation
Adam - Witcher 3

Credits

Host and Producer: Paul Carr
Music: DJ Spooky

Episode 78 - Alien Signal Stephen Hawking Clickbait Mystery

Recorded: 4 September 2017
Released: 4 September 2017
Duration: 70 minutes, 11 seconds

download the .mp3 audio file

Credit: exoplanets.eu

Host Paul Carr welcomes long-time panelist Nick Nielsen to talk about some of the latest news in radio astronomy - both the serious science and the lurid headlines. Radio Bursts (FRBs) have been know for some years now, but a the only known repeating FRB, 121102, has been acting up lately.

Links

FRB 121102: Detection at 4 - 8 GHz band with Breakthrough Listen backend at Green Bank
BREAKTHROUGH LISTEN DETECTS REPEATING FAST RADIO BURSTS FROM THE DISTANT UNIVERSE
Jason Siegel: Five Reasons Why The Signals From Stephen Hawking's Breakthrough Initiative Aren't Aliens
Scholz, et. al., Simultaneous X-ray, gamma-ray, and Radio Observations of the repeating Fast Radio Burst FRB 121102
C.J. Law, et. al. -
A Multi-telescope Campaign on FRB 121102: Implications for the FRB Population
Astronomer Jason Hessels on the repeating FRB
Astronomers have found the source of a deep space radio wave burst for the first time: We finally know the galactic culprit

The Most Mysterious Star in the Galaxy
Almost certainly wrong: an alien megastructure speculation about KIC 8462852
exoplanets.eu

 

Credits:

Host and Producer: Paul Carr
Music: DJ Spooky


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