Scientists from #MPSGoettingen are contributing to and organizing part of the program of the Annual meeting of the German Astronomical Society #ag2025goerlitz

https://ag2025.astronomische-gesellschaft.de/program/index.php

In particular, the splinter session on "Observation and Characterization of Extrasolar Planets" is co-organised by @DrReneHeller https://ag2025.astronomische-gesellschaft.de/view_splinter.php?session=ExoPlanets

and the splinter session on "Protoplanetary disks and planet formation at high-angular resolution" is co-organised by @astrojoanna https://ag2025.astronomische-gesellschaft.de/view_splinter.php?session=PlanetFormation

Looking forward to the line-up of talks over the next coming days!

#AG2025Goerlitz #PlanetFormation #ExtrasolarPlanets #ExoPlanets #PLATO #PLATOMission #MPSGoettingen #CHEOPS #JWST #Astrodon #Görlitz

AG meeting 2025

Annual Meeting of the Astronomische Gesellschaft 2025, held in Görlitz from September 15-19, 2025

Now brainstorming: a world with Earth-like raw materials...but put in the radiation belt of Upsilon Andromedae. Results? Stunningly alien.

Read all about it at my #blog: https://www.adamasnemesis.com/2025/08/11/the-pale-green-dot-filtered-through-a-dream/

This post's featured image is a detail of Frederick Edwin Church's "Aurora Borealis".

#worldbuilding #scifi #sciencefiction #spaceopera #planets #extrasolarplanets #alienlife #alienintelligence #alienmoon #moons #planets

NASA is Building a Space Telescope to Observe Exoplanet Atmospheres

The exoplanet census continues to grow. Currently, 5,819 exoplanets have been confirmed in 4,346 star systems, while thousands more await confirmation. The vast majority of these planets were detected in the past twenty years, owing to missions like the Kepler Space Telescope, the Transiting Exoplanet Survey Satellite (TESS), the venerable Hubble, the Convection, Rotation and … Continue reading "NASA is Building a Space Telescope to Observe Exoplanet Atmospheres"

Universe Today

No strange new worlds surrounding Vega, but an abnormality that would be worth the trip.

“The nearby bright star Vega is surrounded by a surprisingly smooth, 100 billion-mile-wide disk of cosmic dust, confirming that it is not surrounded by any exoplanets, JWST images reveal. And scientists cannot explain its lack of alien worlds.”

#StrangeNewWorlds #ForAllManKind #SpaceExploration #ExtrasolarPlanets #Astronomy

https://www.livescience.com/space/astronomy/ridiculously-smooth-james-webb-telescope-spies-unusual-pancake-like-disk-around-nearby-star-vega-and-scientists-cant-explain-it

'Ridiculously smooth': James Webb telescope spies unusual pancake-like disk around nearby star Vega — and scientists can't explain it

The nearby bright star Vega is surrounded by a surprisingly smooth, 100 billion-mile-wide disk of cosmic dust, confirming that it is not surrounded by any exoplanets, JWST images reveal. And scientists cannot explain its lack of alien worlds.

Live Science

Regular readers of this blog (both of them) will have noticed that I didn’t post an update of activity at the Open Journal of Astrophysics last weekend. Despite having accepted several papers for publication in the preceding week, no final versions had made it onto the arXiv. We can’t published a paper until the authors post the final version, so that meant a bit of a backlog developed. This week included one day with no arXiv update (owing to a US holiday on Tuesday 8th October) and a major glitch on Crossref on Thursday which delayed a couple, but even so we’ve published six papers which is the most we’ve ever managed in a week. This week saw the publication of our 200th article; the total as of today is 202.  The count in Volume 7 (2024) is now up to 87; we have four papers in the queue for publication so we should pass 90 next week if all goes well.

In chronological order, the six papers published this week, with their overlays, are as follows. You can click on the images of the overlays to make them larger should you wish to do so.

First one up, published on Monday 7th October 2024 is “z~2 dual AGN host galaxies are disky: stellar kinematics in the ASTRID Simulation” by Ekaterina Dadiani (CMU; Carnegie Mellon U.) Tiziana di Matteo (CMU), Nianyi Chen (CMU), Patrick Lachance (CMU), Yue Shen (U. Illinois at Urbana-Champaign), Yu-Ching Chen (Johns Hopkins U.), Rupert Croft (CMU), Yueying Ni (CfA Harvard) and Simeon Bird (U. California Riverside) – all based in the USA. The paper, which is in the folder marked Astrophysics of Galaxies describes a numerical study of the morphology of AGN host galaxies containing close pairs of black holes.

Here is a screen grab of the overlay, which includes the abstract:

 

You can find the officially accepted version of the paper on the arXiv here.

The second paper to announce, published on 8th October 2024, is “Origin of LAMOST J1010+2358 Revisited” by S.K. Jeena and Projjwal Banerjee of the Indian Institute of Technology Palakkad, Kerala, India. This paper discusses  the possible formation mechanisms for Very Metal Poor (VMP) stars and the implications for the origin of LAMOST J1010+2358 and is in the folder marked Solar and Stellar Astrophysics.

You can see the overlay here:

The accepted version of this paper can be found on the arXiv here.

The third paper is very different in both style and content: “Assessing your Observatory’s Impact: Best Practices in Establishing and Maintaining Observatory Bibliographies” by Raffaele D’Abrusco (Harvard CfA and 14 others; the Observatory Bibliographers Collaboration) and is in the folder marked Instrumentation and Methods for Astrophysics. It presents discussion of the methods used by astronomical observatories to construct and analyze bibliographic databases. The overlay is here:

(This one gave me a rare opportunity to use the library of stock images that comes with the Scholastica platform!) The officially accepted version can be found on arXiv here.

The fourth paper, also published on 8th October 2024, and our 200th publication, is in the folder marked Cosmology and NonGalactic Astrophysics, and is called “CombineHarvesterFlow: Joint Probe Analysis Made Easy with Normalizing Flows“. The authors are Peter L. Taylor, Andrei Cuceu, Chun-Hao To, and Erik A. Zaborowski of Ohio State University, USA. The article presents a new method that speeds up the sampling of joint posterior distributions in the context of inference using combinations of data sets. The overlay is here

You can find the officially accepted version of this paper here.

The fifth paper in this batch is “Estimating Exoplanet Mass using Machine Learning on Incomplete Datasets” by Florian Lalande (Okinawa Institute of Science and Technology), Elizabeth Tasker (Institute of Space and Astronautical Science, Kanagawa) and Kenji Doya (Okinawa); all based in Japan. This one was published on 10th October 2024 in the folder marked Earth and Planetary Astrophysics. It compares different methods for inferring exoplanet masses in catalogues with missing data

 

 

You can find the official accepted version on the arXiv here.

Finally for this week we have “Forecasting the accuracy of velocity-field reconstruction” by Chris Blake and Ryan Turner of Swinburne University of Technology, Melbourne, Australia. This was also published on 10th October 2024 and is in the folder marked Cosmology and NonGalactic Astrophysics. The paper describes a numerical study of the reliability and precision of different methods of velocity-density reconstruction. The overlay is here

You can find the officially-accepted version on arXiv here.

That’s it for now. We have published six papers, with a very wide geographical spread of authors, and in five of the six astro-ph categories we cover. I think it’s been a good week!

https://telescoper.blog/2024/10/12/six-new-publications-at-the-open-journal-of-astrophysics/

#240606687v2 #ActiveGalacticNuclei #AGN #arXiv231214263v2 #arXiv240100060v3 #arXiv240802643v2 #arXiv240805660v2 #arXiv241006922 #AstrophysicsOfGalaxies #blackHoles #CombineHarvester #CosmologyAndNonGalacticAstrophysics #EarthAndPlanetaryAstrophysics #exoplanets #extrasolarPlanets #inference #InstrumentationAndMethodsForAstrophysics #LAMOSTJ1010 #LAMOSTJ10102358 #largeScaleStructureOfTheUniverse #ObservatoryBibliographies #OpenJournalOfAstrophysics #PopulationIIIStars #SolarAndStellarAstrophysics #TheOpenJournalOfAstrophysics #velocityReconstruction

The Open Journal of Astrophysics

The Open Journal of Astrophysics is an arXiv overlay journal providing open access to peer-reviewed research in astrophysics and cosmology.

Fedora Chronicles Strange New Worlds. If Earth had a ring but it pummeled to the surface because it crossed the Roche Radius… what are the chances of other Earth-like worlds still have rings now? Could M-Class worlds have rings or moons… or both?

#StrangeNewWorlds #ForAllManKind #SpaceExploration #ExtrasolarPlanets #Astronomy

https://www.livescience.com/space/earth-once-wore-a-saturn-like-ring-study-of-ancient-craters-suggests

Earth once wore a Saturn-like ring, study of ancient craters suggests

The ring could be responsible for a prolonged drop in temperatures millions of years ago.

Live Science
Take a Look at These Stunning New Exoplanet Infographics

Two new exoplanet infographics from Slovak artist Martin Vargic show almost 1600 different exoplanets in all their glory.

Universe Today

Imagine having the ability to travel to one of these rogue planets and being the first to walk on one of them.

“They're called rogue planets or free-floating planets (FFPs.) Some FFPs form as loners, never having enjoyed the company of a star. But most are ejected from solar systems somehow, and there are different ways that can happen.”

#StrangeNewWorlds #ForAllManKind #SpaceExploration #ExtrasolarPlanets #Astronomy

https://phys.org/news/2024-04-rogue-planets.html

Where are all these rogue planets coming from?

There's a population of planets that drifts through space untethered to any stars. They're called rogue planets or free-floating planets (FFPs.) Some FFPs form as loners, never having enjoyed the company of a star. But most are ejected from solar systems somehow, and there are different ways that can happen.

Phys.org

Imagine how mad Im now that they're only doing this with mere telescopes and not sending actual people to do the exploring and mapping. If you need I'll be crying and unpacking my suitcase…

“NASA's Roman team selects survey to map our galaxy's far side!”

#StrangeNewWorlds #ForAllManKind #SpaceExploration #cosmology #ExtrasolarPlanets #Astronomy

https://phys.org/news/2024-03-nasa-roman-team-survey-galaxy.html

NASA's Roman team selects survey to map our galaxy's far side

NASA's Nancy Grace Roman Space Telescope team has announced plans for an unprecedented survey of the plane of our Milky Way galaxy. It will peer deeper into this region than any other survey, mapping more of our galaxy's stars than all previous observations combined.

Phys.org