Twitter thread index
JAXA thread - Part 1
https://twitter.com/VinnyChirayil/status/1490522715765174276
JAXA thread - Part 2
https://twitter.com/VinnyChirayil/status/1499757733301874691
https://threadreaderapp.com/thread/1499757733301874691.html
-------------------------------------------------------------
Thread on CoPhyLab's failure to recreate cometary features via ice sublimation
https://twitter.com/VinnyChirayil/status/1540652819271004163?s=20&t=8zPSyoN_m0vZfiNA4LweIQ
Thread on artificial cratering of Comet Tempel 1
https://twitter.com/VinnyChirayil/status/1541448764011212805?s=20&t=8zPSyoN_m0vZfiNA4LweIQ
Why visit Uranus & Neptune to unlock planets formation ? Ask JAXA & NASA.
https://twitter.com/VinnyChirayil/status/1541785564361654273?s=20&t=8zPSyoN_m0vZfiNA4LweIQ
Asteroid Phaethon : The bluest asteroid in the solar system
https://twitter.com/VinnyChirayil/status/1541768227600355328?s=20&t=8zPSyoN_m0vZfiNA4LweIQ
My prediction regarding asteroid Psyche looking rocky & dusty instead of metallic
https://twitter.com/VinnyChirayil/status/1539308284045586432?s=20&t=8zPSyoN_m0vZfiNA4LweIQ
https://twitter.com/VinnyChirayil/status/1539611822055391232?s=20&t=8zPSyoN_m0vZfiNA4LweIQ
Thread exposing the crackpot beliefs of astrophysicist Dr. Brad Tucker
https://twitter.com/VinnyChirayil/status/1539960647601242113?s=20&t=8zPSyoN_m0vZfiNA4LweIQ
Round shape does not require large size or gravity : Saturn's egg-shaped moon Methone
https://twitter.com/VinnyChirayil/status/1539664304445997057?s=20&t=8zPSyoN_m0vZfiNA4LweIQ
Paper - The Cratering History of Asteroid (2867) Steins
https://twitter.com/VinnyChirayil/status/1537121192146272256?s=20&t=8zPSyoN_m0vZfiNA4LweIQ
Paper - Scaling of crater formation
https://twitter.com/VinnyChirayil/status/1537115882371297280?s=20&t=8zPSyoN_m0vZfiNA4LweIQ
Square shaped rock on moon turns out to be not square
https://twitter.com/VinnyChirayil/status/1537076346333306881?s=20&t=8zPSyoN_m0vZfiNA4LweIQ
---------------
Thread : getting blocked by Spanish astrophysicist Dr. Josep M. Trigo & reveals why asteroids Ryugu & Itokawa are not pristine.
https://twitter.com/VinnyChirayil/status/1536373933666336768?s=20&t=8zPSyoN_m0vZfiNA4LweIQ
Ryugu samples are not pristine. Equivalent to Titanic's wreckage. Physically & chemically altered.
https://twitter.com/VinnyChirayil/status/1535548874479349766?s=20&t=8zPSyoN_m0vZfiNA4LweIQ
---------------
Missing Iridium in Ryugu samples
https://twitter.com/VinnyChirayil/status/1535190220173639681?s=20&t=8zPSyoN_m0vZfiNA4LweIQ
Asking a co-author to explain Ryugu's 100C vs 400C & missing Iridium
https://twitter.com/VinnyChirayil/status/1535825544167985152?s=20&t=4nvmXJwzgyat-QGo1hUtiQ
Thread on diameter of impactors vs resulting craters
https://twitter.com/VinnyChirayil/status/1536334929587761152?cxt=HHwWgMDT4dCelNIqAAAA
Thread (up) : Asteroids Ryugu & Itokawa are NOT physically & chemically pristine.
They are both equivalent of Titanic's wreckage, if their origin stories are true.
https://twitter.com/VinnyChirayil/status/1536586726776672256?s=20&t=-tW9b1vuY_z9y08k6dIIGA
Paper - Spherule layers, crater scaling laws, and the population of ancient terrestrial impactors
Brandon Johnson et al, 2016, Crater size being 10-20X the impactor size
https://twitter.com/VinnyChirayil/status/1533103123891650560?s=20&t=-tW9b1vuY_z9y08k6dIIGA
Visual similarity of the plumes of Enceladus moon & Comet 67P
https://twitter.com/VinnyChirayil/status/1533681835817181184?s=20&t=-tW9b1vuY_z9y08k6dIIGA
Crater Size Scaling Law And Impact-Induced Seismic Shaking On Rubble-Pile Asteroids
- Yamamoto et al, 2021 (Kobe Univ & JAXA)
https://twitter.com/VinnyChirayil/status/1533079983828377601?s=20&t=-tW9b1vuY_z9y08k6dIIGA
Advanced Crater Size Scaling Laws Through Hydrocode Simulations
- Kai Wünnemann et al, 2013
https://twitter.com/VinnyChirayil/status/1533079362811338752?s=20&t=-tW9b1vuY_z9y08k6dIIGA
Thread (up) : Comet 73P's brightness increased by 600 times in 65 years / 12 orbits !
https://twitter.com/VinnyChirayil/status/1531815099542822912?s=20&t=-tW9b1vuY_z9y08k6dIIGA
Large Impacts onto the Early Earth: Planetary Sterilization and Iron Delivery
- Robert Citron & Sarah Stewart, 2022
https://iopscience.iop.org/article/10.3847/PSJ/ac66e8
Questioning gravitational lensing
https://twitter.com/VinnyChirayil/status/1529080685134172161?s=20&t=-tW9b1vuY_z9y08k6dIIGA
Spindle shaped, 1.3 km wide Comet 73P's brightness went up by 400 times in 65 years
https://imo.net/papers/Comet%2073PSchwassman-Wachman-Joe-Rao.pdf
https://www.universetoday.com/155928/we-may-see-a-tau-herculid-meteor-outburst-on-may-31st/
https://twitter.com/VinnyChirayil/status/1528801650437066753?s=20&t=-tW9b1vuY_z9y08k6dIIGA
Comet 323P / SOHO : fastest rotating comet in the solar system at 0.52 hour, it means that the nucleus has high cohesive strength, believed to be fragmenting, orbits sun every 4 years, 172 meters wide (560 ft), it's a near-sun comet
https://phys.org/news/2022-03-sun-slowly-comet.html
https://arxiv.org/abs/2203.02999 - The Lingering Death of Periodic Near-Sun Comet 323P/SOHO
https://twitter.com/VinnyChirayil/status/1528793410051510272?s=20&t=-tW9b1vuY_z9y08k6dIIGA
===== Below : Till March 2022 ======
Lightcurves of Asteroid Mathilde vs Kleopatra vs Arrokoth
https://twitter.com/VinnyChirayil/status/1509154743746461703
Lightcurve of Arrokoth - Arrokoth paper considers a lightcurve amplitude of 0.5 mag or higher as a highly elongated celestial body and the observed amplitude of 0.15 mag of Arrokoth implies it is spherical.
https://twitter.com/VinnyChirayil/status/1407612659772530692
Origin of Earth's water (different from asteroids & comets)
https://twitter.com/KinarNicholas/status/1504497096187006986
Exposing the hypocrisy of scientist & science communicator Katie Mack, also known as AstroKatie on Twitter.
https://twitter.com/VinnyChirayil/status/1497403761127735297
Paper - Asteroid Ryugu : a cometary origin
https://twitter.com/VinnyChirayil/status/1404830119630311427
Paper - The Asteroid-Comet Continuum
https://twitter.com/VinnyChirayil/status/1505220546577170433
Thread on Equatorial Ridges of 4 asteroids & 3 Saturnian moons.
Are they caused by accretion or spin-up ?
https://twitter.com/VinnyChirayil/status/1502655360523706368
https://twitter.com/VinnyChirayil/status/1500867869470789635
Paper - Active Main-Belt Asteroid (6478) Gault
https://twitter.com/VinnyChirayil/status/1476160983420735490
382 kg of moon samples could not even reveal the secrets of the moon itself.
But a pinch of asteroid dust will reveal secrets of entire solar system ?
https://twitter.com/VinnyChirayil/status/1504533417425510404
https://curator.jsc.nasa.gov/lunar/
NASA climate scientist Chris Colose is eager to comment on pseudoscience (astrology) but goes silent when i invited him to talk about science
https://twitter.com/VinnyChirayil/status/1504534170936446976?s=20&t=f-ZHhz6cADDKHpn7IZMTYQ
Planetary Scientist Pascal Lee has unscientific ideas about comets
https://twitter.com/VinnyChirayil/status/1492317739616067586
https://twitter.com/VinnyChirayil/status/1494315249801265152
Astronomer Theresa Wiegert goes silent when evidence was asked
https://twitter.com/VinnyChirayil/status/1492694984994160640
-------------
Researchers who use social media to gain exposure for their work and papers should also be willing to answer questions that come as a result of this increased exposure. Doing otherwise is a bad look for science.
https://twitter.com/agronomistag/status/1359230848726298624?s=20&t=f-ZHhz6cADDKHpn7IZMTYQ
-------------
Questioning Ryan Ridden on lightcurve inversion being considered as science
https://twitter.com/VinnyChirayil/status/1360658569398415360
https://twitter.com/VinnyChirayil/status/1360045418038521859
Astronomer Tom Linder runs away when asked for evidence on cometary sublimation
https://twitter.com/VinnyChirayil/status/1491950540321742848
Sarafina Nance, a priest disguised as a scientist, blocked me when her narrative was questioned.
https://twitter.com/VinnyChirayil/status/1491790564504662019
https://twitter.com/VinnyChirayil/status/1487080918443458566
-------------
A PhD & MSc in space studies could not prevent Elizabeth Howell, a space journalist and communicator, from blindly believing in fairytales. Her faith is not shaken a bit. Mental conditioning can easily defeat academic qualifications & professional experience.
https://twitter.com/VinnyChirayil/status/1491603685792641028
https://twitter.com/VinnyChirayil/status/1491435157936807936
-------------
On comets
https://twitter.com/VinnyChirayil/status/1470962375201198081
Earth's 2 trojan asteroids. As per IAU rules, earth is no longer a planet, as it did not clear its orbit, implying that solar system has only 7 planets.
https://twitter.com/VinnyChirayil/status/1489226626764210177
Why would comets or asteroids have seeds of life ? What evidence exists to even consider it ?
https://twitter.com/VinnyChirayil/status/1487471271365406724
15 Failures of lightcurve based shape predictions
https://twitter.com/VinnyChirayil/status/1487483176159440896
Students being misled on comet education
https://twitter.com/VinnyChirayil/status/1487253694936928258
No comments:
Post a Comment