170109 January 9, 2017 KZSB SBAU radio hour notes Baron, JW, CMcP, TW, TT
-play attached audio file to listen
833am pre-show conversations
00:00.000 lightning but no thunder heard by some, TomT refreshments, ChuckMcP re: Red Nova, Mike Brown planet Nine on 60 minutes.
03:05.962 gang here, Baron naming TT, JW, CMcP, JerryW planet formation meeting was great, Josh Garber, geologist. ChuckMcP scary email on Red Nova, CM-probably orange to our eyes, bright as Polaris. 2022.2 Mike Brown, planet nine, 10 earth masses. JW-not Mike Brown demoting Pluto, just found another object like Pluto. B-great time to be in astronomy. CM-story of naming Makemake. B-BruceM? CM-skiing. JW-TomW a last min guy.
08:10.578 phone ring, no caller; B-annoying calls technique, JW-once told phone company he could help them block calls.
09:40.458
09:50.422 CM-first tuesdays
9:05am
11:01.111 SBAU Show Part1: Universe in the Radio acapella, B-2nd, 4th Mondays, TomT will intro others B-this is an outreach, 6 of these get a free membership! 2nd Saturday at museum, 3rd Friday at Westmont. CM-school science nights, email
outreach@sbau.org. B-TomW entering studio. B-red nova? TomT-Michigan Christian college discovered, they say they are better in astronomy, so Westmont should be able to do this as well. CMcP-two stars merging in 5 years, JW-like throwing more logs on fire. TomW-Roche lob of atmospheres combining, like CM said, peanut shaped. JW-gravity pull of one star to other. B-orbiting each other, CM-minutes apart, accretion disk with one particle 2022.2. TT-how detected? CM-see light pattern decreasing, JW-other stars have done that in past w/ same light curve, CM-in other cases, they see nova first and then go back in archive of astro photos. song: "when I was a child I tuned in to a galactic community"
22:10.010 acapella song cont.: "I look up to the sky at night...are we all alone..." B-intros, TT-food guy, JW-SB remote sensing, CM. B-satellite between sun earth? JW-Lagrange point, million miles; James Webb telescope avoids heat signature from earth. B-? JW-they will see fainter objects, Brown dwarf stars. B-do stars use fission? fusion! Jupiter would not qualify? CM-about 80 Jupiters would. JW-need 10M degrees in center. B-if on planet around a red dwarf, ok to look at a Red Dwarf star? CM-depends on distance TT-eyes might be bigger JW-may look like white to those evolved around that. Proxima planet seen by light variation, JW-spectral lines moving, gives estimates of how many planets. B-how many exoplanets? CM-about 4K now. TomW-wobbling stars, Jupiter mass causes a 5m/s pivot around center of gravity. earth causes 1m/s CM-and that can be measured. TT-so when planets line up, that causes earthquakes? JW-urban legend, 1964 that happened and folks claimed Calif would fall into the ocean. B-Q on TomW classes, wants to audit. TW-electronic circuits, life sci physics. self taught in electronics due to physics grad student. JW-dinosaurs back when I did that. B-magnatars talk in class? hard on iron in blood? JW-other things to worry about if near one! song "cruising at 78, over a hilltop, sun in her eyes...caught by a speedtrap..."
34:19.055 acapella song "xrays...heavy stars...supernovae...if we had xray eyes" B-shopping center setup a problem? CM-we choose the bright Moon nights there. B-Tuesday workshop at Museum? JW-3 of us there to help. B-James Webb? JW-Helium cooling to due Infrared work, 4 kelvin. B-spectrum, E-M, eyes visible light. Gamma, xrays? JW-fuzzy boundaries between named areas. low energy, longer wavelengths. B-visible betw infrared and ultraviolet. JW-organic molecules bonds can be broken by xray wavelength. Gamma is shortest, highest energy. B-radio waves can be made by oscillating crystal. How make gamma wavelength? JW-smash atoms. B-speed of light for E-M waves? JW-yes. Some sun items slower than speed of light. photons in sun? CM-emitted and absorbed many times, so gamma to xray to visible. JW-nuclear fusion.
44:06.377 acapella song "last century...latitude so low, you are a cloud in history..." B-spectroscopy how do frequencies line up? CM-temp indicated by spectra. JW-sun spectra shown to Baron. JW-black lines caused by colder gas above the sun absorbing light frequencies due to those elements. B-92 elements JW-some elements share lines TomW-continuous color from just inside sun surface, like a filament in a light bulb, black lines give the sun's signature. cooler gas absorb certain freq lines, Kirchhoff laws
https://www.e-education.psu.edu/astro801/content/l3_p6.html , helium discovered in sun from spectra lines. CM-burn Ca in flame you get yellow light. Some elements of sun are 3rd/4th generation from other stars. song: "calm and cloudless night, shaking of universe to occur, Galileo used telescope for very first time"
51:18.247 song "he saw Jupiter w/ 4 tiny moons" B-SBAU will come and sing these TT-for a steep price B-lots of Astro talks in town, Tabby's star CM-public has Neil Degrasse Tyson as a rock star getting public excited. TomW-freq of visible 10^15, gamma 10^19. background radiation of universe is about 1cm wavelength, 21cm is used by astronomers. JW-billion waves in an inch for visible. B-want to audit class JW-maybe Westmont has policy to check on that.
57:25.953 end