mattkenworthy

mattkenworthy, 3 hours ago to Astro

Limbach+ on “Occurrence Rates of Exosatellites Orbiting 3-30MJup Hosts from 44 Spitzer Light Curves” with some very intriguing measurements that are suggesting exomoon eclipses around free floating low mass objects and occurrence rates of ~0.6 for short period terrestrial exosatellites 🔭🪐 #astrodon https://arxiv.org/abs/2405.08116

mattkenworthy, 1 day ago to Astro

On Friday 12 July in the evening I’ll be giving a talk about “Rocks, Rubble and Rings” a.k.a. colliding exoplanets at #SpaceLates at the National Space Centre in Leicester! There are several talks and workshops, ideal for families, so go and book your tickets 🔭🪐 #astrodon #outreach https://www.spacecentre.co.uk/whats-on/space-lates-july/

mattkenworthy, 2 days ago to random

There’s an old castle in a suburb of #Leiden that I take a walk through, and sometimes the water is calm enough to get the reflection.

mattkenworthy, 4 days ago to Astro

Wowsers, we went outside just now in Leiden and you can see red and green auroral bands! They’re faint, but definitely changing on minute timescales! #astrodon #triffids

mattkenworthy, 5 days ago to Astro

Deal and Espinoza present Spelunker: A quick-look Python pipeline for JWST NIRISS FGS Guide Star Data - I love astronomy projects which open up new science from previously unconsidered data streams: it will be very interesting to see what someone discovers with this #JWST data. 🔭🪐 #astrodon https://arxiv.org/abs/2405.05453

ejo60, 7 days ago to random

Surgery today, at the end of the day I’m probably allowed to go home.

mattkenworthy, 9 days ago to Astro

Student paper day! Kleisioti+ on “Direct detectability of tidally heated exomoons by photometric orbital modulation” where she shows that a tidally locked #exomoon with a volcano can be detected with #JWST and two IR bands, even if it’s NOT transiting its parent exoplanet 🔭🪐 #astrodon https://arxiv.org/abs/2405.01970

mattkenworthy, 9 days ago to Astro

Tschudi+ on SPHERE RefPlanets: Search for epsilon Eridani b and warm dust with an absolutely heroic 38.5 hour cumulative integration looking for reflected light from the RV detected planet 🔭🪐 around this nearby star, but no joy, even with nearly eight decades of sensitivity at 1 arcsec! #astrodon https://arxiv.org/abs/2404.19504

mattkenworthy, 11 days ago to random

In my astronomy career I have had my foot run over by Stephen Hawking, had Neil deGrasse Tyson come to my seminar and promptly fall asleep, and stood in an elevator with Roger Penrose where he was wearing exactly the same clothing as the publicity poster on the elevator wall behind his shoulder.

mattkenworthy, 13 days ago to random

EV charger: "Good day, stout traveler of good heart! In order to release the cable of electricity, first you must answer these riddles three!"

Me (weeping gently): I just want to pick up four flat packs and a colander from the IKEA in Delft

mattkenworthy, 14 days ago to random

To sell a telescope: https://kenworthy.micro.blog/2024/05/01/to-sell-a.html

mattkenworthy, 15 days ago to Astro

Cotton+ have discovered that “Deneb is a Large Amplitude Polarimetric Variable” - it’s very rare that something new is found out about a named star, but this shows that you just never know…very cool! Observations were taken with the HIPPI-2 and PICSARR polarimeters 🔭🪐 #astrodon https://arxiv.org/abs/2404.17707

jwz, 16 days ago to random

You guys, an Acquistions Manager is still interested in XScreenSaver! https://jwz.org/b/ykLI

mattkenworthy, 16 days ago to Astro

Astronomical photographic plates enable time domain science, including searches for transiting #exoring systems such as #J1407b, so I was happy to see Enke+ “Archives of Photographic PLates for Astronomical USE (APPLAUSE)" that includes a light curve for Boyajian’s star #astrodon 🪐🔭 https://arxiv.org/abs/2404.17355

Inverted photos of white on black images of GK Per, showing the expansion of a shell of ejected material over 1914 to 1953.

mattkenworthy, 18 days ago to random

Today is #koningsdag here in the Netherlands, and #Leiden is as busy as all the other cities today, despite the cold weather. The #HooglandseKerk had an amazing paper craft exhibition, providing a small respite from the celebrations that are ramping up for tonight.

Black and grey paper sculpture with tesselated diamonds and stars, in bas relief illuminated from above.

mattkenworthy, 19 days ago to Astro

A paper by TUD student Allard Veenstra on “A general polarimetric model for transiting and non-transiting ringed exoplanets” featuring the Python package Pryngles. It will be very cool to see this tested with the Habitable Worlds Observer, but maybe sooner than that…? #astrodon 🔭🪐 https://arxiv.org/abs/2404.16606

Three orientations of a ringed planet and the calculated phase and polarization curves.

mattkenworthy, 19 days ago to random

Oh no, they found me!

telescoper, 19 days ago to random

I find myself wondering if the Flatiron Institute has a Press Office?

Geddit?

vicgrinberg, 20 days ago to random

I worry sometimes about the impression (sad? desperate?) my "I'm in city X, does any mutual want to meet up?" make.

But hey: I am building my village. A village makes me happy.

My villages have always been digital. The geographic neighbors are there by chance and they will disappear when one moves.

The digital village? It's still here. From 5, 10, 15, 20 years ago. We spend days walking Berlin or London. They stay in my guest room. And it starts with: I'm in city X, do you want to meet?

mattkenworthy, 23 days ago to Astronomy

Allow me to introduce Alex Mustill’s latest paper, where he focuses on “The formation of transiting circumplanetary 🔭🪐 debris discs from the disruption of satellite systems during planet-planet scattering” which features one of the coolest diagrams I’ve seen. /1 https://arxiv.org/abs/2404.12239 #astronomy #astrodon