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#tess

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HistoPol (#HP) 🏴 🇺🇸 🏴

@admin

#TESS
Wäre dieses #NASA-Projekt nicht etwas für dich und deine Schülis?

(Natürlich nur mit TOR und Pseudonymen und z. B. Schweizer Mailkonten ;))

hachyderm.io/@BenjaminHCCarr/1

@BenjaminHCCarr

Hachyderm.ioBenjamin Carr, Ph.D. 👨🏻‍💻🧬 (@BenjaminHCCarr@hachyderm.io)#CitizenScientists pinpoint 10,000 eclipsing #star pairs #NASA is still looking for #volunteer stargazers to help with the #astronomy effort #Ctizenscience project in question, the #EclipsingBinaryPatrol, validates images from NASA's Transiting Exoplanet Survey Satellite (TESS) mission. Researchers identified 1.2 million potential eclipsing star pairs. Citizen scientists validated a subset of about 60,000... manually inspecting 100,000s of images. https://www.washingtonpost.com/science/2025/07/06/citizen-scientist-binary-stars-astronomy/ https://archive.ph/NwV7b
Loki the Cat

Citizen Scientists Just Helped Discover Nearly 8,000 New Eclipsing Binary Stars! 🌟

AI spotted 1.2M potential stellar couples, but humans had to play cosmic matchmaker and manually verify which ones were actually together. The result? 7,936 brand new binary systems! Next up: hunting for exoplanets around these stellar pairs. 🚀

science.slashdot.org/story/25/

science.slashdot.orgCitizen Scientists Just Helped Discover Nearly 8,000 New Eclipsing Binary Stars - Slashdot"Citizen scientists have successfully located thousands of previously unknown pairs of 'eclipsing binary' stars," reports the Washington Post, citing a recent announcement from NASA. The ongoing initiative helps space researchers hunt for "eclipsing binary" stars, a rare phenomenon in which two st...
#CitizenScience#NASA#TESS
michael

2-Jul-2025
Clingy planets can trigger own doom, suspect #Cheops and #TESS

"planet with a death wish" seems to be triggering flares of radiation from the star it orbits. These tremendous explosions are blasting away the planet’s wispy atmosphere, causing it to shrink every year.
Though it was theorised to be possible since the 90s, the flares seen in this research are around 100 times more energetic than expected.
eurekalert.org/news-releases/1
#science #exoplanets #astrobiology

EurekAlert!Clingy planets can trigger own doom, suspect Cheops and TESSAstronomers using the European Space Agency’s Cheops mission have caught an exoplanet that seems to be triggering flares of radiation from the star it orbits. These tremendous explosions are blasting away the planet’s wispy atmosphere, causing it to shrink every year. This is the first-ever evidence for a ‘planet with a death wish’. Though it was theorised to be possible since the nineties, the flares seen in this research are around 100 times more energetic than expected.
*
RTN

#AIP:
"
Exoplanet entfacht stellares Feuerwerk
"
"
Beobachtungen zeigen, wie ein Planet Eruptionen auf seinem Mutterstern verursacht. Die im Fachjournal Nature veröffentlichte Entdeckung liefert neue Erkenntnisse, wie Planeten und Sterne miteinander interagieren und sich gemeinsam entwickeln. ..
"
aip.de/de/news/stellar-firewor

2.7.2025

www.aip.deExoplanet entfacht stellares FeuerwerkBeobachtungen zeigen, wie ein Planet Eruptionen auf seinem Mutterstern verursacht. Die im Fachjournal Nature veröffentlichte Entdeckung liefert neue Erkenntnisse, wie Planeten und Sterne miteinander i
#Astronomie#ASTRON#CHEOPS
Mikko Tuomi

First first-author paper by my PhD researcher Andras Haris. Not formally accepted yet, but major hurdles cleared.

He has analysed 3273 space telescope #transit light curves of 99 #planets, and identified 105 candidates for #starspot occultation events by six planets.

Homogeneous search for spot transits in #Kepler and #TESS photometry of K − M-type main-sequence #stars

#astronomy #astrophysics
arxiv.org/abs/2502.18129

arXiv.orgHomogeneous search for spot transits in Kepler and TESS photometry of K $-$ M-type main-sequence starsLate-type stars are known to host numerous exoplanets, and their photometric variability, primarily caused by rotational modulation, provides a unique opportunity to study starspots. As exoplanets transit in front of their host stars, they may occult darker, spotted regions on the stellar surfaces. The monitoring of starspots from planetary transits, known as transit mapping, offers a possibility to detect small dark regions on magnetically active, late-type stars. These spots may be so small that they would be undetectable to other methods used to reconstruct stellar magnetic activity. We describe a Bayesian analysis framework on the transit light curves of planets orbiting K- and M-type main-sequence stars in search for spot occultation event candidates. We present a systematic analysis of high-precision, high-cadence light curves from Kepler and TESS to detect and characterise starspots during exoplanetary transits. According to our tests, the set of criteria applied in the analysis is robust and not prone to false positives. Our sample comprises K- and M-dwarfs hosting transiting exoplanets observed by the Kepler or TESS space telescopes at a high cadence, totalling 99 planets meeting our selection criteria. After analysing 3273 transit light curves from 99 planets, we find 105 candidates for starspot occultation events by six planets. We report new spot occultation candidates for the K-dwarfs HD 189733 and TOI-1268. The identified dark regions have a lower limit for radii between 1.6 degrees and 29.5 degrees and contrasts up to 0.69. We estimate a spot detection frequency of 3.7% and 4.2% for K- and M-dwarfs by TESS, and 37.5% for K-dwarfs by Kepler.
Mikko Tuomi

Transiting #Exoplanet Survey Satellite is not only good at detecting #exoplanets.

Here are 11 new transiting brown dwarfs and very low-mass #stars from #TESS consisting of 5 brown dwarf companions and 6 very low mass stellar companions ranging in mass from 25 to 128 Jupiter masses.

The #eccentricity distribution for the transiting brown dwarf sample does not support previous claims of a transition between planetary and stellar formation at ∼42 Jupiter masses.

astrobiology.com/2025/01/11-ne

Astrobiology · 11 New Transiting Brown Dwarfs and Very Low Mass Stars from TESS - AstrobiologyWe present the discovery of 11 new transiting brown dwarfs and low-mass M-dwarfs from NASA’s TESS mission: TOI-2844, TOI-3122, TOI-3577, TOI-3755, TOI-4462, TOI-4635, TOI-4737, TOI-4759, TOI-5240, TOI-5467, and TOI-5882. They consist of 5 brown dwarf companions and 6 very low mass stellar companions ranging in mass from 25MJ to 128MJ. We used a combination of […]
RTN

#UniBE:
"
Die heissen Jupiter ziehen ihre Bahnen nicht allein
Heisse Jupiter sind Riesenplaneten, v. denen bisher angenommen wurde, dass sie im jeweiligen Planetensystem alleine in der Nähe ihres Sterns kreisen.
"
".. Planetensystem mit einer unerwarteten Architektur entdeckt: WASP-132 enthält nicht nur .. heissen Jupiter, sondern auch .. Supererde .."

mediarelations.unibe.ch/medien

15.1.2025

Media RelationsDie heissen Jupiter ziehen ihre Bahnen nicht alleinHeisse Jupiter sind Riesenplaneten, von denen bisher angenommen wurde, dass sie im jeweiligen Planetensystem alleine in der Nähe ihres Sterns kreisen. Ein Team unter der Leitung der Universität Genf mit Beteiligung der Universität Bern und der Universität Zürich im Rahmen des Nationalen Forschungsschwerpunkts PlanetS sowie mehreren ausländischen Universitäten hat ein Planetensystem mit einer unerwarteten Architektur entdeckt: WASP-132 enthält nicht nur einen heissen Jupiter, sondern auch eine Supererde – und einen eisigen Riesenplaneten. Diese Erkenntnisse sind von Bedeutung für das Verständnis der Entstehung und Entwicklung von Planetensystemen.
#Astronomie#EulerTeleskop#Exoplanet
Martin Owens :inkscape:

This took a *long* time to get to me. It was hanging out at MIT during Covid and finally someone mailed it to me this year as the lab was being closed up.

It was a fun project to work on, though I wasn't critical. Best I can say is; "I hope I helped" 😅 But I'm also chuffed to bits to have it.

#TESS#NASA#Space
RTN

#UP:
"
Berufswunsch: Astrophysikerin – Die Potsdamer Studentin Anna Maria Weiß hat einen Planeten entdeckt
"
".. sie erkundet einen Planeten außerhalb unseres Sonnensystems, den sie bereits als Schülerin selbst entdeckt hat: TOI1147. Dieser ist 700 Lichtjahre von der Erde entfernt und mehr als doppelt so groß wie der Jupiter.."

uni-potsdam.de/de/nachrichten/

7.1.2025

www.uni-potsdam.deBerufswunsch: Astrophysikerin – Die Potsdamer Studentin Anna Maria Weiß hat einen Planeten entdeckt
#AIP#Astronomie#Astrophotonik
Daniel Fischer

TIC 290061484 - a Triply Eclipsing Triple System with the Shortest Known Outer Period of 24.5 Days: iopscience.iop.org/article/10. -> NASA’s #TESS Spots Record-Breaking Stellar Triplets: nasa.gov/missions/tess/nasas-t

iopscience.iop.orgTIC 290061484: A Triply Eclipsing Triple System with the Shortest Known Outer Period of 24.5 Days - IOPscienceTIC 290061484: A Triply Eclipsing Triple System with the Shortest Known Outer Period of 24.5 Days, V. B. Kostov, S. A. Rappaport, T. Borkovits, B. P. Powell, R. Gagliano, M. Omohundro, I. B. Bíró, M. Moe, S. B. Howell, T. Mitnyan, C. A. Clark, M. H. Kristiansen, I. A. Terentev, H. M. Schwengeler, A. Pál, A. Vanderburg
Daniel Fischer

Gliese 12 b, a temperate Earth-sized planet at 12 parsecs discovered with #TESS and #CHEOPS / Gliese 12 b - A Temperate Earth-sized #Planet at 12 pc Ideal for Atmospheric Transmission Spectroscopy: academic.oup.com/mnras/article / iopscience.iop.org/article/10. -> Rare 'exo-Venus' with Earth-like temperature discovered / NASA’s TESS Finds Intriguing World Sized Between Earth, Venus: ras.ac.uk/news-and-press/news/ / science.nasa.gov/universe/exop

OUP AcademicGliese 12 b, a temperate Earth-sized planet at 12 parsecs discovered with TESS and CHEOPSABSTRACT. We report on the discovery of Gliese 12 b, the nearest transiting temperate, Earth-sized planet found to date. Gliese 12 is a bright (V = 12.6 ma
Daniel Fischer

NASA’s #TESS (Transiting Exoplanet Survey Satellite) returned to science operations May 3 and is once again making observations: science.nasa.gov/missions/tess - the satellite went into safe mode April 23 following a separate period of down time earlier that month.

science.nasa.govNASA’s Planet-Hunting Satellite Temporarily on Pause - NASA ScienceDuring a routine activity April 23, NASA’s TESS (Transiting Exoplanet Survey Satellite) entered safe mode, temporarily suspending science operations. The satellite scans the sky searching for planets beyond our solar system. The team is working to restore the satellite to science operations while investigating the underlying cause. NASA also continues investigating the cause of a […]
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