#kavli

[smallest-moon]

just thinking about kaveh (yes again) and how i think he'd love to study the chasm, to be able to fiddle and learn about the rocks and minerals there

it would be a perfect place to learn about steadier foundations, how to work with different types of rocks and how to best combine them, after all he needs such knowledge to continue to improve his architecture (not to mention more inspiration and a million other things he could learn). really what better way to learn about such things than the land of geo?

also thinking about how zhongli would still be the geo archon and is still working as a consultant and that is how he ends up being kaveh's guide through the chasm and the rest of liyue

they get along extremely well, which taking turns going on deep tangents about whatever subject comes about while the other listens and attentively (and in kaveh's case when the subject is very particular, taking frantic notes)

during this trip, kaveh was extremely worried about his expenses and made sure to budget everything as this was not a cheap journey but he figured that it would be worth it all in the end

and zhongli was extremely observant, he had noticed this and it he finally understands one night when after dinner (paid by zhongli) kaveh got drunk and spilled his heart out to the man it was so easy to talk to him for some reason

this made zhonglis heart stirr even more at this point, he'd already been captivated by the architects sunny personality and deep heart so this made him come to a decision: he'd look out for kaveh

and so during the rest of the trip, he made sure to pay for everything leaving the younger man quite flustered and whenever he noticed the architect looking at something with an interested look he didn't hesitate to get him whatever it was

[blue-vabis]

Softcheese nostalgia, swedish.

[huariqueje]

Woman reading the newspaper  -   Arne Kavli , n/d.

Norwegian, 1878-1970

Oil on canvas,  85 x 75 cm.

[random-brushstrokes]

Arne Texnes Kavli - From Rønnes (n.d.)

[jcmarchi]

MIT astronomers observe elusive stellar light surrounding ancient quasars

New Post has been published on https://thedigitalinsider.com/mit-astronomers-observe-elusive-stellar-light-surrounding-ancient-quasars/

MIT astronomers observe elusive stellar light surrounding ancient quasars

MIT astronomers have observed the elusive starlight surrounding some of the earliest quasars in the universe. The distant signals, which trace back more than 13 billion years to the universe’s infancy, are revealing clues to how the very first black holes and galaxies evolved.

Quasars are the blazing centers of active galaxies, which host an insatiable supermassive black hole at their core. Most galaxies host a central black hole that may occasionally feast on gas and stellar debris, generating a brief burst of light in the form of a glowing ring as material swirls in toward the black hole.

Quasars, by contrast, can consume enormous amounts of matter over much longer stretches of time, generating an extremely bright and long-lasting ring — so bright, in fact, that quasars are among the most luminous objects in the universe.

Because they are so bright, quasars outshine the rest of the galaxy in which they reside. But the MIT team was able for the first time to observe the much fainter light from stars in the host galaxies of three ancient quasars.

Based on this elusive stellar light, the researchers estimated the mass of each host galaxy, compared to the mass of its central supermassive black hole. They found that for these quasars, the central black holes were much more massive relative to their host galaxies, compared to their modern counterparts.

The findings, published today in the Astrophysical Journal, may shed light on how the earliest supermassive black holes became so massive despite having a relatively short amount of cosmic time in which to grow. In particular, those earliest monster black holes may have sprouted from more massive “seeds” than more modern black holes did.

“After the universe came into existence, there were seed black holes that then consumed material and grew in a very short time,” says study author Minghao Yue, a postdoc in MIT’s Kavli Institute for Astrophysics and Space Research. “One of the big questions is to understand how those monster black holes could grow so big, so fast.”

“These black holes are billions of times more massive than the sun, at a time when the universe is still in its infancy,” says study author Anna-Christina Eilers, assistant professor of physics at MIT. “Our results imply that in the early universe, supermassive black holes might have gained their mass before their host galaxies did, and the initial black hole seeds could have been more massive than today.”

Eilers’ and Yue’s co-authors include MIT Kavli Director Robert Simcoe, MIT Hubble Fellow and postdoc Rohan Naidu, and collaborators in Switzerland, Austria, Japan, and at North Carolina State University.

Dazzling cores

A quasar’s extreme luminosity has been obvious since astronomers first discovered the objects in the 1960s. They assumed then that the quasar’s light stemmed from a single, star-like “point source.” Scientists designated the objects “quasars,” as a portmanteau of a “quasi-stellar” object. Since those first observations, scientists have realized that quasars are in fact not stellar in origin but emanate from the accretion of intensely powerful and persistent supermassive black holes sitting at the center of galaxies that also host stars, which are much fainter in comparison to their dazzling cores.

It’s been extremely challenging to separate the light from a quasar’s central black hole from the light of the host galaxy’s stars. The task is a bit like discerning a field of fireflies around a central, massive searchlight. But in recent years, astronomers have had a much better chance of doing so with the launch of NASA’s James Webb Space Telescope (JWST), which has been able to peer farther back in time, and with much higher sensitivity and resolution, than any existing observatory.

In their new study, Yue and Eilers used dedicated time on JWST to observe six known, ancient quasars, intermittently from the fall of 2022 through the following spring. In total, the team collected more than 120 hours of observations of the six distant objects.

“The quasar outshines its host galaxy by orders of magnitude. And previous images were not sharp enough to distinguish what the host galaxy with all its stars looks like,” Yue says. “Now for the first time, we are able to reveal the light from these stars by very carefully modeling JWST’s much sharper images of those quasars.”

A light balance

The team took stock of the imaging data collected by JWST of each of the six distant quasars, which they estimated to be about 13 billion years old. That data included measurements of each quasar’s light in different wavelengths. The researchers fed that data into a model of how much of that light likely comes from a compact “point source,” such as a central black hole’s accretion disk, versus a more diffuse source, such as light from the host galaxy’s surrounding, scattered stars.

Through this modeling, the team teased apart each quasar’s light into two components: light from the central black hole’s luminous disk and light from the host galaxy’s more diffuse stars. The amount of light from both sources is a reflection of their total mass. The researchers estimate that for these quasars, the ratio between the mass of the central black hole and the mass of the host galaxy was about 1:10. This, they realized, was in stark contrast to today’s mass balance of 1:1,000, in which more recently formed black holes are much less massive compared to their host galaxies.

“This tells us something about what grows first: Is it the black hole that grows first, and then the galaxy catches up? Or is the galaxy and its stars that first grow, and they dominate and regulate the black hole’s growth?” Eilers explains. “We see that black holes in the early universe seem to be growing faster than their host galaxies. That is tentative evidence that the initial black hole seeds could have been more massive back then.”

“There must have been some mechanism to make a black hole gain their mass earlier than their host galaxy in those first billion years,” Yue adds. “It’s kind of the first evidence we see for this, which is exciting.”

[lemuseum]

[oldsardens]

Arne Kavli - Kaffebordet i hagen. 1933

[rearte2]

by Arne Kavli, 1916

[doubtsandloves]

Arne Kavli (Norwegian, 1878-1970) - Summer Interior, c. 1933

[motionpicturelover]

"Ombyte av tåg" (1943) - Hasse Ekman

(Transl.: "Changing trains")

Films I've watched in 2023 (118/119)

[wikipediagrams]

[archiveofcanvas]

Arne Kavli 1878-1970, Norge / Norway 17. mai Constitution Day, 17 May 1914 Olje pà lerret / Oil on canvas

[blue-vabis]

Swedish Cheddar softcheese ad.

[huariqueje]

 Stortingsgaten -   Arne Kavli ,  n/d.

Norwegian, 1878-1970

Oil on canvas,  67 x 85 cm. .

[tanahkavlingperumahan]

DEKAT WISATA, 0856-4536-0333, beli tanah dicicil Blitar

klik https://wa.me/6285645360333, Cara Kredit Tanah Kavling Yang Aman, Cara Beli Tanah Kavling Yang Aman, Tanah Kavling Terdekat, Tanah Kavling Untuk Rumah, Tanah Kavling Investasi Jangka Panjang**ANGSURAN RINGAN SAMPAI 2 THN, TANPA BUNGA** * Dekat Area Wisata * Dekat Perkantoran * Dekat Sekolah * Tanah Datar siap Bangun * Posisi Tanah Lebih Tinggi (Insyallah Lebih Aman dari banjir) Sistem bayar : • Mudah & Fleksibel (bisa dirembug) • Syarat Mudah hanya FC KTP + KK TOTAL BONUS Senilai 10 JUTA!!! * FREE Biaya SPLIT Rp 4.JUTA * FREE Biaya AJB Rp 1 JUTA * FREE Pajak Pembelian Rp 1.5 JUTA * FREE Biaya Balik Nama Sertifikat Rp.4 JUTA TERBATAS HANYA 2 BIDANG!! SENTUL LAND Lokasi: Jl. Candi Pawon Barat Sembot, Sentul, Kota Blitar (Utara Makam Bung Karno) Info lengkap hubungi : TIYA : 0856-4536-0333 For More Information Website: www.dinastyproperti.com Instagram: @dinasty_properti#investasiproperti, #investasipropertisyariah, #investasipropertiaman, #investasiproperties, #investasipropertifavoritku, #investasipropertih, #investasipropertiHargacorona, #investasipropertihakmilik, #investasipropertii, #investasipropertiislami

[jcmarchi]

Sarah Millholland receives 2024 Vera Rubin Early Career Award

New Post has been published on https://thedigitalinsider.com/sarah-millholland-receives-2024-vera-rubin-early-career-award/

Sarah Millholland receives 2024 Vera Rubin Early Career Award

Sarah Millholland, an assistant professor of physics at MIT and member of the Kavli Institute for Astrophysics and Space Research, is the 2024 recipient of the Vera Rubin Early Career Award for her wide-ranging contributions to the formation and dynamics of extrasolar planetary systems.

The American Astronomical Society’s Division on Dynamical Astronomy (DDA) recognized Millholland for her demonstration “that super-Earth planets within a planetary system typically have similar masses, that the statistics of compact multi-planet systems are consistent with a smooth inclination distribution, and that resonances trapping obliquities to high values may enhance the tidal evolution of planetary orbits.”

The citation noted that her work “is distinguished by thoughtful analyses of 3D dynamical processes in planetary systems and by effective use of observational data to constrain dynamical models.” Millholland is invited to give a lecture at the 56th annual DDA meeting in spring 2025.

“I am incredibly honored to receive the DDA Vera Rubin Early Career Prize, and I am especially grateful to my advisors and mentors within the dynamical astronomy community,” says Millholland. “The DDA means a lot to me, and I look forward to continuing to be a part of it for years to come.”

Millholland is a data-driven dynamicist who studies extrasolar planets, including their formation and evolution, orbital architectures, and interiors/atmospheres. She studies patterns in the observed planetary orbital architectures, referring to properties like the spacings, eccentricities, inclinations, axial tilts, and planetary size relationships. She specializes in investigating how gravitational interactions like tides, resonances, and spin dynamics sculpt observable exoplanet properties.

Millholland obtained bachelor’s degrees in physics and applied mathematics from the University of Saint Thomas in 2015. She earned her PhD in astronomy from Yale University in 2020, and was a NASA Sagan Postdoctoral Fellow at Princeton University until 2022, when she joined MIT.

The Vera Rubin Early Career Prize was established in 2016 in honor of the late Vera Rubin, a longtime DDA Member and galactic dynamicist.