CfA HEA Division
CfA HEA Division
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HEAD seminar at CfA: Southampton students special seminar
Maja Cummings talks about The relationship between Quasars and their host galaxies' Properties at cosmic noon
Maria Paltoglou talks about Characterisation of the atmosphere of an 800K sub-Neptune with transmission spectra from HST
Yazmin Bath talks about Using gravitational lensing to resolve milliarcsecond X-ray structure of high-redshift AGN
Mia Lilley talks about Modeling stellar energetic particles
using the focused transport equation
Alex Ostridge talks about Using machine learning to
characterise gravitational lenses
zhlédnutí: 86

Video

HEAD seminar at CfA 05/01/2024: Jeongbhin Seo, Mikhail Medvedev
zhlédnutí 55Před 2 měsíci
Jeongbhin talks about Radio Galaxy Jets as an Origin of Ultra-High Energy Cosmic Rays Mikhail talks about Modeling and prospects of X-ray imaging of the outer heliosphere (and other "astrospheres")
HEAD seminar at CfA 04/24/2024: Lea Feuillet
zhlédnutí 47Před 2 měsíci
Lea talks about A Spatially Resolved View of the Star-Formation-AGN Connection in NGC 7469
HEAD seminar at CfA, 04/17/2024: Jaya Maithil, Jing Ye
zhlédnutí 35Před 2 měsíci
Jaya talks about Investigating the X-ray jet emission mechanism of two radio-loud quasars at z ~ 3 Jing talks about Numerical study of the turbulent fine structures and the plasma heating process via magnetic reconnection in solar eruptions
HEAD seminar at CfA, 04/03/2024: Stephen Lesage, Yi Zhang
zhlédnutí 34Před 2 měsíci
Stephen talks about Fermi GBM Analysis of the BOAT: GRB 221009A Yi talks about the Hot Circumgalactic Medium in the eROSITA All Sky Survey
HEAD seminar at CfA, 03/27/2024: Michael Calzadilla, Wayne Baumgartner
zhlédnutí 87Před 3 měsíci
Michael talks about Evolution of the AGN Feedback Cycle in Galaxy Clusters Wayne talks about X-ray Optics at MSFC
HEAD seminar at CfA, 03/20/2024: Francesco Ziparo, Silvano Molendi
zhlédnutí 53Před 3 měsíci
Francesco talks about Primordial black holes as supermassive black holes seeds. SIlvano talks about Metal enrichment: the apex accretor perspective.
HEAD seminar at CfA 03/06/2024: Jordy Develaar, Julia Sisk-Reynes
zhlédnutí 186Před 3 měsíci
Jordy talks about Tell-tale electromagnetic signatures of massive black hole binaries Julia talks about Using high-resolution X-ray spectroscopy to unveil fundamental physics.
HEAD seminar at CfA,02/28/2024: Michael Terres
zhlédnutí 78Před 4 měsíci
Michael talks about Energy Transfer from Fluid to Kinetic Scales in the Solar Wind
HEAD seminar at CfA, 02/21/2024: Gabriel Grell, Tyler Holland-Ashford
zhlédnutí 52Před 4 měsíci
Gabriel talks about Laboratory Benchmark of Ne-like Fe XVII Line Formation Channels. Tyler talks about Measuring Ejecta Mass Ratios in Kepler’s SNR to Constrain Its Origin
HEAD seminar at CfA 02/14/2024: Jessie Duncan, Emily Silich
zhlédnutí 53Před 4 měsíci
Jessie talks about Understanding the Hot Solar Corona via X-ray Observations with NuSTAR Emily talks about ICM-SHOX: Improved Constraints on Mergers with SZ, Hydrodynamical simulations, Optical, and X-ray
HEAD seminar at CfA, 02/07/2024: Cosimo Bambi, Franz Bauer
zhlédnutí 60Před 4 měsíci
Cosimo talks about "Towards a new generation of reflection models for precision measurements of accreting black holes" Franz talks about exploring the large population of extragalactic Fast X-ray Transients
HEAD seminar at CfA, 01/31/2024: Ehud Behar
zhlédnutí 54Před 4 měsíci
Ehud talks about X-Ray Spectroscopic Insights Into the Microphysics of Collisionless Shocks
HEAD seminar at CfA, 01/24/2024: Konstantina Anastasopoulou, Francesco Ubertosi
zhlédnutí 98Před 5 měsíci
Konstantina talks about EWOCS: The X-ray properties of the Wolf-Rayet stars in the young and very massive Galactic star cluster Westerlund 1 Francesco talks about Jet reorientation in central galaxies of clusters and groups: insights from VLBA and Chandra data
HEAD seminar @CfA 12/6/2023: Gene Leung, Sandra Raimundo
zhlédnutí 72Před 6 měsíci
Gene talks about The High Redshift Universe in JWST Observations: The UV Luminosity Function and Little Red Dots Sandra talks about Fuelling supermassive black holes with galaxy interactions
HEAD seminar @CfA 11/29/23: Ping Zhou, Payaswini Saikia
zhlédnutí 69Před 7 měsíci
HEAD seminar @CfA 11/29/23: Ping Zhou, Payaswini Saikia
HEAD seminar @CfA 11/15/2023: Akos Bogdan, Jung-Tsung Li
zhlédnutí 69Před 7 měsíci
HEAD seminar @CfA 11/15/2023: Akos Bogdan, Jung-Tsung Li
HEAD special seminar @CfA 11/9/2023: Mukul Bhattacharya
zhlédnutí 45Před 7 měsíci
HEAD special seminar @CfA 11/9/2023: Mukul Bhattacharya
HEAD seminar @CfA 11/8/2023: Patricia Cho, Paola Dominguez Fernandez
zhlédnutí 45Před 7 měsíci
HEAD seminar @CfA 11/8/2023: Patricia Cho, Paola Dominguez Fernandez
HEAD seminar @ CfA 11/01/2023: Amy Secunda, Alessandro Peca
zhlédnutí 55Před 8 měsíci
HEAD seminar @ CfA 11/01/2023: Amy Secunda, Alessandro Peca
HEAD seminar @CfA 10/04/2023: Riccardo Arcodia, Kishalay De
zhlédnutí 108Před 8 měsíci
HEAD seminar @CfA 10/04/2023: Riccardo Arcodia, Kishalay De
HEAD seminar @CfA 10/11/2023: Weiwei Xu, Amir Sharon
zhlédnutí 45Před 8 měsíci
HEAD seminar @CfA 10/11/2023: Weiwei Xu, Amir Sharon
HEAD seminar @CfA 10/04/2023: Andrea Sacchi, Marcella Brusa
zhlédnutí 79Před 8 měsíci
HEAD seminar @CfA 10/04/2023: Andrea Sacchi, Marcella Brusa
HEAD seminar @CfA 09/20/2023: Giulia Cerini, Anna Wolter
zhlédnutí 143Před 9 měsíci
HEAD seminar @CfA 09/20/2023: Giulia Cerini, Anna Wolter
HEAD seminar @ CfA 09/13/2023: Yeimy Rivera and Axel Donath
zhlédnutí 58Před 9 měsíci
HEAD seminar @ CfA 09/13/2023: Yeimy Rivera and Axel Donath
HEAD seminar @CfA 09/06/2023: Debatri Chattopadhyay, Athiray Panchapakesan
zhlédnutí 129Před 9 měsíci
HEAD seminar @CfA 09/06/2023: Debatri Chattopadhyay, Athiray Panchapakesan
High Energy Special Seminar 06/14/2023: Yen-Ting Lin, Dominika Krol
zhlédnutí 66Před rokem
High Energy Special Seminar 06/14/2023: Yen-Ting Lin, Dominika Krol
High Energy Special Seminar 06/07/2023: Antoine Meyer
zhlédnutí 63Před rokem
High Energy Special Seminar 06/07/2023: Antoine Meyer
High Energy Special Seminar 05/24/2023: Yerong Xu
zhlédnutí 67Před rokem
High Energy Special Seminar 05/24/2023: Yerong Xu
High Energy Seminar 05/17/2023: Southampton students special seminar
zhlédnutí 80Před rokem
High Energy Seminar 05/17/2023: Southampton students special seminar

Komentáře

  • @TokyoNightGirl-fk4cn
    @TokyoNightGirl-fk4cn Před 2 měsíci

    💕Wow💙💙💙💙💙💙🧡💙

  • @redsky1433
    @redsky1433 Před 6 měsíci

    Very poor sound for first speaker. Sound is good for second speaker, starting at 29.00.

  • @user-yw6sv1dl9f
    @user-yw6sv1dl9f Před 8 měsíci

    I was honored to be invited

  • @shawns0762
    @shawns0762 Před 9 měsíci

    There is an elephant in the room explanation for those abnormally high star rotation rates. Most people don't know that Einstein said that singularities are not possible. In the 1939 journal "Annals of Mathematics" he wrote "The essential result of this investigation is a clear understanding as to why the Schwarzchild singularities (Schwarzchild was the first to raise the issue of General relativity predicting singularities) do not exist in physical reality. Although the theory given here treats only clusters (star clusters) whose particles move along circular paths it does seem to be subject to reasonable doubt that more general cases will have analogous results. The Schwarzchild singularities do not appear for the reason that matter cannot be concentrated arbitrarily. And this is due to the fact that otherwise the constituting particles would reach the velocity of light." He was referring to the phenomenon of dilation (sometimes called gamma or y) mass that is dilated is smeared through spacetime relative to an outside observer. This is illustrated in a common 2 axis dilation graph with velocity on the horizontal line and dilation on the vertical. Even mass that exists at 75% light speed is partially dilated. General relativity does not predict singularities when you factor in dilation. Einstein is known to have repeatedly spoken about this. Nobody believed in black holes when he was alive for this reason. Wherever there is an astronomical quantity of mass, dilation will occur because high mass means high momentum. There is no place in the universe where mass is more concentrated than at the center of a galaxy. It can be shown mathematically that the mass at the center of our own galaxy must be dilated. In other words that mass is all around us. This is the explanation for the abnormally high rotation rates of stars in spiral galaxies, the missing mass is dilated mass. According to Einstein's math, there would be no dilation in galaxies with very, very low mass because they do not have enough mass at the center to achieve relativistic velocities. It has recently been confirmed with 5 very, very low mass galaxies to show no signs of dark matter, in other words they have normal star rotation rates.

  • @simrcchannel
    @simrcchannel Před 10 měsíci

    need an update of professor Romani's latest research ❤😊

  • @edthoreum7625
    @edthoreum7625 Před rokem

    25:15 #2 sun rays

  • @zrustamkulov
    @zrustamkulov Před 3 lety

    No audio in Antonija's talk

  • @simrcchannel
    @simrcchannel Před 3 lety

    Learn a lot

  • @pierreparrend7235
    @pierreparrend7235 Před 3 lety

    Very nice job Eva!

  • @Vonwra
    @Vonwra Před 4 lety

    Dale you had more hair at U of T! Fair warning, your former roomate has even less now!

  • @oliverkim7696
    @oliverkim7696 Před 4 lety

    Professor Hahn knew about the coronavirus 5 years in advance :o

  • @sheilabitts6106
    @sheilabitts6106 Před 7 lety

    space megalodon

  • @tracykarinp
    @tracykarinp Před 7 lety

    A must see presentation for all in the "Space Industry" both government and commercial! Thank you Jonathan for bringing this in the limelight to our "Throwaway" society!

  • @AstroanarchyNetVidcasts

    Awesome talk! Great job Jonathan!

  • @ecegulfemdagdeviren6247

    He explains everything very clear! I think that seminar is one of the best CfA seminar.

  • @lynnkeh7226
    @lynnkeh7226 Před 7 lety

    bravo!

  • @BartAlder
    @BartAlder Před 8 lety

    Not clear how a seminar on webpage plug-ins qualifies as a high energy seminar.

  • @BartAlder
    @BartAlder Před 8 lety

    Thanks so much for this upload. Wonderful.

  • @nigelatkins7478
    @nigelatkins7478 Před 8 lety

    Wish we could hear the questions from the audience.