This is the Southern Pleiades! ✨✨✨
This cluster’s name comes from its similarity to the famous Pleiades cluster in Taurus. Both have bright, young, blue stars but the Southern Pleiades is around 70% dimmer than its northern counterpart - making it a less common target for astronomers! 💫💫💫
Taken by me (Michelle Park) using the Slooh Chile Two telescope on January 18th, 2021 at 5:07 UTC.
Is neutrino density causing frame drag and messing with the Doppler and so messing with Hubble measurements? Frequency would be affected but not luminosity i think.
Distant quasars are unique tracers to study the formation of the earliest
supermassive black holes (SMBHs) and the history of cosmic reionization.
Despite extensive efforts, only two quasars have been found at z≥7.5, due
to a combination of their low spatial density and the high contamination rate
in quasar selection. We report the discovery of a luminous quasar at z=7.642,
J0313−1806, the most distant quasar yet known. This quasar has a bolometric
luminosity of 3.6×1013L⊙. Deep spectroscopic observations
reveal a SMBH with a mass of (1.6±0.4)×109M⊙ in this quasar.
The existence of such a massive SMBH just ∼670 million years after the Big
Bang challenges significantly theoretical models of SMBH growth. In addition,
the quasar spectrum exhibits strong broad absorption line (BAL) features in CIV
and SiIV, with a maximum velocity close to 20% of the speed of light. The
relativistic BAL features, combined with a strongly blueshifted CIV emission
line, indicate that there is a strong active galactic nucleus (AGN) driven
outflow in this system. ALMA observations detect the dust continuum and [CII]
emission from the quasar host galaxy, yielding an accurate redshift of 7.6423±0.0013 and suggesting that the quasar is hosted by an intensely
star-forming galaxy, with a star formation rate of ∼200 M⊙ yr−1 and a dust mass of ∼7×107 M⊙. Followup observations
of this reionization-era BAL quasar will provide a powerful probe of the
effects of AGN feedback on the growth of the earliest massive galaxies.
FLUCTUATIONS IN THE ELECTRO-FORCE FROM THE DAWN OF TIME… tell the tale of a maelstrom, the oldest and mightiest of the ur-gyres:
The most distant quasar known has been discovered. The quasar, observed
just 670 million years after the Big Bang, is 1000 times more luminous
than the Milky Way. It is powered by the earliest known supermassive
black hole, which weighs in at more than 1.6 billion times the mass of
the Sun. Seen more than 13 billion years ago, this fully formed distant
quasar is also the earliest yet discovered, providing astronomers with
insight into the formation of massive galaxies in the early Universe.
This Hubble Space Telescope image reveals the Cosmic Snake, a distant galaxy lumpy with regions of intense star formation.
The giant arc-like galaxy appears warped by the effect of gravitational lensing - it’s actually behind a nearer galaxy cluster, but due to gravity warping light, we can see the more distant galaxy from Earth.
Massive cosmic objects, from single stars to galaxy clusters, bend and focus light, making it flow around them due to gravity acting like giant magnifying glasses: This effect is called “gravitational lensing” or, when detected on tiny patches of sky, “microlensing.”
study setup for today✨
This is the Monkey Head Nebula! 🐒🐒🐒
This nebula is formed from hierarchical collapse - where gas and dust clouds collapsed to form newborn stars. The hydrogen gas in this nebula is ionized and shaped into pillars by the newborn stars’ ultraviolet light! ✨✨✨
Taken by me (Michelle Park) using the Slooh Chile Two telescope on January 18th, 2021 at 5:57 UTC.
Tim Dodd’s tour of the Boca Chica Launch and Building Site!!! 🚀🚀🚀
Despite the fact that I understand hardly anything, I am OBSESSED with Astrophysics and space. I recently listened to Neil Degrasse Tyson’s book “Astrophysics for People in a Hurry” and it really put things into perspective and humbled me. I would love to learn more.
notes for astronomy ✍🏽
“Glowy Serpents 〰️ I often get asked how do the northern lights look like to the naked eye. Well, it depends how strong they are. Sometimes they might only look like a very dim greenish hue in the sky and you need to take a long exposure photo to really be able to tell if it’s the northern light. But sometimes when they get super strong, it’s actually hard to take a good photo of them because they are so bright compared to the dark landscape. If they get so strong, you can see them dancing with different speeds and colors, it’s truly magical. During our workshop we were lucky to witness one of the strongest northern light shows that I have ever seen myself. They were so bright that I was able to take some video of them with my camera, swipe left to see it. That’s the real speed and how they look like to the naked eye if they get so strong.”
Made by Instagram user @juusohd
If you love astronomy, feel free to visit my blog @astronomypoetry for more amazing cosmos.
Big bang theory. Kicking the can down the road once.
Big bounce theory. That was so fun let’s keep doing it.
Meanwhile I ride by on my bike.
Vanderbilt astrophysicists, led by Assistant Professor of Physics and Astronomy Stephen Taylor, are part of a group of researchers that may have found
I will probably get hate for this but i find constellations unnecessary. Of course I see the benefits in it but I just find it stupid to know which is which. Is it necessary to LIKE constellations if I wanted to get into astrophysics. But I just find it difficult to understand the purpose of it. Yes it was useful in ancient history but is it important to know in this day and age. If I were to know already where the stars in the sky are and which particular one it was, is there a point in knowing it? I am interested in hearing people points of view.
This is NGC 2626! ✨✨✨
Within this nebula alone, there are a plethora of newborn stars known as T Tauri stars that make it a great target for analyzing star formation! Located in the constellation Vela, this nebula unfortunately doesn’t get a lot of attention… 😥😥😥
Taken by me (Michelle Park) using the Slooh Chile Two telescope on January 13th, 2021 at 4:57 UTC.
Theoretical physicist Paul Adrien Maurice Dirac famously known among the particle physics community for the dirac equation, a relativistic wave equation that unifies special relativity and quantum mechanics:
(iγᵤ∂ᵘ - m)ψ = 0
i - imaginary number ( i = √-1)
γᵤ - pauli matrices
∂ᵘ - derivative in 4 dimensions, ∂ᵘ = (∂ₜ , -∇)
m - fermion mass
ψ - wave function
In its free form or including electromagnetic interactions, it describes all spin-½ massive particles such as electrons and quarks for which parity is a symmetry. It was validated by accounting for the fine details of the hydrogen spectrum in a completely rigorous way. The equation predicted the existence of antimatter which was experimentally confirmed several years later by Carl Anderson through the discovery of a positron. It also provided theoretical justification for the introduction of several component wave functions in Pauli’s phenomenological theory of spin.
SN9 below the stars⭐️⭐️⭐️ 📸: John Kraus