hfalcke

hfalcke, 1 month ago to random

There are days when you really don’t want to look at Mastodon. What a terrible place today. Everybody and their brothers and sisters are posting their pictures of the #aurora. I have never seen one and when I went outside it was cloudy🙄. I will probably take a break and check in again when this “storm” is over … 😭

hfalcke, 1 month ago to Astronomy German

Wonderful news. The Gruber Foundation presents the 2024 Cosmology Prize to Marcia Rieke for pioneering work on astronomical instrumentation to reveal the breadth and details of the infrared universe.
https://gruber.yale.edu

(She was actually my teacher at the Vatican Summer School in 1993 and later I sat next to her at the MMT in Arizona conducting near-infrared observations. What a great person and scientist!)

#astronomy #astrodon #astrophysics #gruberprize

hfalcke, 1 month ago to random German

Da ist schön 😊. Unser #Kinderbuch „Kekskrümel im All“ ist auf dem ersten Platz der #hr2 Hörbuchliste mit netter Besprechung:

“Papa ist »Weltraumforscher« und beantwortet Janas Fragen nach der Größe des Himmels, dem Weltall und wie weit der Mond entfernt ist, kindgerecht und liebevoll. So lernt Jana wie nebenbei das Universum kennen und fühlt sich angesichts dessen Größe wie ein Kekskrümel. Andreas Fröhlich liest humorvoll, empathisch und informativ zugleich. Ein Sachhörbuch erster Klasse”

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hfalcke, 2 months ago to Astro

Currently new #EventHorizonTelescope (#EHT) observations are happening. This is part of our enthusiastic and international team at the #IRAM 30m-telescope on Pico Veleta in Spain: Lott Frans (Univ Namibia), Noemia La Bella (@Radboud_uni ) and Pablo Torne (IRAM). Weather on past night was fantastic😊.

#Astrodon #Astronomy #blackhole

Snow-covered mountain slopes with ski lifts at dusk, under a sky with pink clouds. A part of a large, curved architectural structure is visible on the right, which is part of the 30m telescope. © Salvador Sanchez

hfalcke, 2 months ago to Astro

Some of the young scientists in the team who led the new Event Horizon Telescope polarization results and their culinary inspiration …. That has become sort of a tradition since some people misinterpreted our ring of fire as an orange donut 🤷🏼‍♂️ Not sure what happened to the color though.

(From left Freek Roelofs, Sara Issaoun and Angelo Ricarte. The first two did their PhD with me. So nice to see how they continue to take leadership in such a big collaboration 😊).
#Astrodon #astronomy

Freek Roelof and Sara Issaoun on the left and Angelo Ricarte in the middle led the analysis
Orange and red swirling pattern representing a black hole's inner accretion flow and jet base.

hfalcke, 2 months ago to Astronomy

New!! Observations of our Event Horizon Telescope (#EHT) collaboration have uncovered strong & organized magnetic fields spiraling around the edge of the supermassive black hole Sagittarius A* (Sgr A*). Images in polarized light of the #blackhole in the Milky Way center reveal structures similar to those in M87*, suggesting that strong magnetic fields may be common to all black holes. This also hints toward a hidden jet in Sgr A*!
#astronomy #astrodon #scicomm #physics

https://www.ru.nl/en/about-us/news/astronomers-unveil-strong-magnetic-fields-spiraling-at-the-edge-of-milky-ways-central-black-hole

Blue oval with a red center line and wavy hairlike structures showing the polarized radio lighter measured by the Planck satellite of the entire sky with the Milky Way prominently along the horizontal center line. Inset toward the center show an inclined ring and two spikes, which are gas streamers in the Galactic Center measured by Sofia (DLR/NASA). Inset to the left shows the polarized ring of the black hole radio image from the EHT again.
Two orange rings with hairy spiral structures. Left: image of black hole in M87, right: black hole Sagittarius A* in the Galactic Center. By Event Horizon Telescope 2024

hfalcke, 2 months ago to random

Shutting down the Chandra x-ray telescope is really a shame 🤔ESA’s XMM-Newton is still going, which actually has a larger collecting area, but it has poorer image resolution.

From: @fraser
https://m.universetoday.com/@fraser/112129175989147539

hfalcke, 2 months ago to Astronomy German

We have two faculty positions in #astrophysics and #astronomy open. Minorities are particularly encouraged to apply. You will meet wonderful colleagues and an excellent, caring and inspiring atmosphere.

1. Assistant Professorship: From stellar environments to conditions on exoplanets
   https://jobregister.aas.org/ad/5fb9742b

2. Assistant Professor Big Data Astronomy
   https://jobregister.aas.org/ad/d2d32e7c

#Astrodon #jobadds #facultyposition

hfalcke, 2 months ago to random German

Tolle Buchpremiere von „Kekskrümel im All“ in Berlin gestern. 120 neugierige und aufmerksame Kinder und Eltern im Planetarium. Beeindruckende Bilder und ein berührendes Lied zum Buch von unserem Sohn Niklas Falcke. Am Mittwoch ist der offizielle Erscheinungstermin und die 2. Auflage wird schon gedruckt. #Kinderbuch #Bücher #literaturlive #thalia #FischerVerlage #Kekskrümel

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hfalcke, 4 months ago to Amsterdam

Great kick-off meeting of our #BlackHolistic project to make color movies of blackholes, funded by a Synergy grant of the #European Research Council #ERC. Partners from @Radboud_uni, University of #Amsterdam, #Oxford, #Turku, and #Namibia will work together, build a new submm-wave telescope in Namibia, and develop a holistic model of black holes. Also talked about societal impact with the Namibian ambassador, who was present. #astrodon #astrophysics #blackhole #astronomy

hfalcke, 4 months ago to random German

#koeln läuft voll und stellt sich quer (bzw längs des Rheins - da gibt es halt den meisten Platz). Man hört auch nicht mehr viel, weil so viele da sind, aber in der Ferne hört man ein paar Karnevalslieder und irgendwer sagt sicher was gescheites. Hauptsache man zeigt Flagge. Hier ist übrigens die berühmte „Mitte der Gesellschaft“ aktiv. #noafd #Koelnstelltsichquer

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hfalcke, 4 months ago to Astro

News Alert: New image of the famous supermassive black hole in M87. The image was taken a year later and reveals the same rings size and shadow shape, confirming our results from 2019! The intensity maximum has rotated however. Not surprising, since matter rotates around a black hole. It is actually now, where you expect it to be.

It quacks like a BH, it looks like a BH, it is a BH!

Paper in A&A: https://www.aanda.org/articles/aa/abs/2024/01/aa47932-23/aa47932-23.html

#astrodon #blackhole #astronomy #astrophysics #eventhorizontelescope

hfalcke, 5 months ago to random German

Am Freitag 5.1. bin ich zusammen mit dem Astronauten und Prof. Ulrich Walter im #QuizduellOlymp zu sehen. Wir kämpfen für einen guten Zweck gegen drei Quizasse - eine Sendung mit drei Professoren 😉

hfalcke, 5 months ago to random German

In memoriam Harold V.J. Linnartz 1965 – 2023: Unlocking the Chemistry of the Heavens
On 31 December 2023 Prof. dr. Harold Linnartz passed away unexpectedly at the age of 58. Linnartz held the Chair for Laboratory Astrophysics at Leiden Observatory, Leiden University, the Netherlands. He was a world leader in laboratory studies of gaseous and icy molecules in interstellar space. Linnartz also served as Education Director at Leiden Observatory. #RIP #memorial

https://www.condoleance.nl/19179/harold-linnartz.html

hfalcke, 6 months ago to Astronomy German

Cool. The Moon will eclipse the Galactic Center (with its black hole in the middle, but its radio emission is swamped by the surrounding gas). Dutch radio astronomy amateurs will measure and stream this live.

#astronomy #astrodon #blackhole #radioastronomy #Dwingeloo
From: @radiotelescoop
https://mastodon.nl/@radiotelescoop/111550558386868588

hfalcke, 6 months ago to random German

Meine neueste Kolumne - diesmal zur Wahl in den Niederlanden: „Demokraten müssen sich zusammenraufen“

https://www.ksta.de/politik/wahl-in-den-niederlanden-die-demokraten-muessen-sich-zusammenraufen-690997

(Ich hoffe, ich darf morgen noch zur Arbeit in die NL einreisen …😉)

hfalcke, 6 months ago to science German

Tip for early career scientists: please don’t skip over your conclusions and end your talk with a “thank you” slide.

We all know you are thankful, but we really would like to have a few moments while we go into discussions to go over your conclusions again.

(BTW, If you really want to thank us, then say so, but it sounds hollow if you write it on a slide at home before you even have met us 🤷🏼‍♂️)

#science #conference #astrodon #physics #astrophysics #EarlyCareerResearchers

hfalcke, 7 months ago to Astro

New results from the #EventHorizonTelescope: Detection of event horizon scale circular polarization (CP) in the supermassive black hole in M87.

We can tell it is there, but we have a hard time imaging it. So, this is a first step only. Modeling suggests that this CP comes from Faraday conversion, which is not unexpected. The models support the paradigm that magnetic fields are dynamically important (and lead to the formation of jets).

#Astrodon #Astronomy #BlackHoles

https://phys.org/news/2023-11-supermassive-black-hole-strong-magnetic.amp

hfalcke, 7 months ago to Astronomy

The #ESA Space Telescope #Euclid is working and will start making a huge 3D census of the sky, hunting for dark matter.
The images themselves may not be that spectacular by themselves, but the entire data set will be. While #JWST looks deep and narrow, Euclid will look deep and wide …

#astronomy #astrodon #astrophysics #astrophotography #physics #astronomie

https://www.esa.int/Science_Exploration/Space_Science/Euclid/Euclid_s_first_images_the_dazzling_edge_of_darkness

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hfalcke, 7 months ago to Astro

Me: Searching for galaxy NGC 4038 on Hubblesite.org

Google: „You got to be a robot“!

#astrodon #astronomy

hfalcke, 7 months ago to Astro

Very honored to have received the Leopoldo Garcia-Colin Goldmedal at the VIII Leopoldo Garcia-Colin Mexican Meeting on Mathematical and Experimental Physics in the beautiful Collegio Nacional in Mexico City. What an amazing city this. #astrodon #astronomy #physics

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hfalcke, 7 months ago to random German

Hatte ein gutes Gespräch in dieser Doku, die ihr in der Mediathek sehen könnt:

“Gott für Anfänger - Wie ich versuchte, den Glauben zu verstehen“ @3sat

Die große Frage lautet natürlich: Existiert Gott? Darauf gibt es nur zwei mögliche Antworten und kein Faktencheck kann entscheiden, welche die richtige ist. Der Autor und Regisseur Volker Strübing, geboren 1971 in der DDR und überzeugter Atheist, stellt also andere Fragen.

https://www.3sat.de/kultur/kulturdoku/gott-fuer-anfaenger-100.html

hfalcke, 7 months ago to random German

Erfolg wächst oft auf einem Misthaufen von Misserfolgen.

#HeinosMorgenWeisheit

hfalcke, 8 months ago to random

As every year around this time I keep my thumps pressed for Jocelyn Bell today !

hfalcke, 8 months ago to random German

Schockierend. Wir haben einen #Stolperstein in unserer Heimatstadt #Frechen adoptiert. Sie erinnern an deportierte Juden im Naziregime. Heute morgen nach dem Kirchgang sehen wir, dass zwei Messingplatten entfernt wurden. Wer macht sowas? Die paar Gramm sind es nicht wert.

#keinverblassen #antisemitismus @aufpolieren