Theoretical Astrophysics Seminars

25th Seminar

1. The effects of Chern-Simons Gravity and Electromagnetic fields in Blach Hole space-time 2. Space-time rotation induced Landau quantization

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Takahashi Rohta

Tomakomai National College of Technology

1. One of the goals of galactic center black hole observations is the validation of theories of gravity. In addition, recent radio observations have revealed visibility and positional information of light source, and in hte near future we will obtain interferometer observations that will show how the magnetic radiation plasma...

24th Seminar

Are Lyman alpha emitters the building blocks of the Milky Way?

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Hidenobu Yajima

Pennsylvania State University

Strong Lyman alpha emitting galaxies have been observed in large numbers over a wide range in redshift. Such galaxies are called Lyman alpha emitters (LAEs), and they are thought to be galaxies in the early stages of evolution. However, there are still many open questions regarding their formation and evolution....

23rd Seminar

The AGN/Starburst connection at z~2 from an IR/submillimeter point of view

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Laurie Riguccini

Ehime University

It is well known nowadays that most of the mass assembly occurs at z~1-3. However, a non-negligible fraction of the star formation across cosmic time occurred within dust-enshrouded environments. One important question is therefore whether we really know the exact amount of star formation activity, which could be strongly biased...

22nd Seminar

The effect of photo-dissociation in the mass accretion phase of PopIII.1 stars

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Hajime Susa

Konan University

Studies throughout the past decade indicate that the mass of the first generation of stars was extremely large, unlike most stars in our galaxy. However, according to recent work on the mass accretion phase, the gas is likely to fragment and produce a cluster of stars, rather than accreting smoothly...

21st Seminar

The formation of the first stars and galaxies

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Thomas Greif

Max Planck Institut für Astrophysik

One of the final frontiers in modern cosmology is the formation of the first stars and galaxies at the end of the cosmic dark ages, when the Universe transitioned from its simple initial state to one of ever increasing complexity. I will discuss how the first bound gas clouds condensed...

20th Seminar (Part 2)

Modeling the Electromagnetic Signature of Merging Supermassive Black Holes

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Takamitsu Tanaka

Max Planck Institut für Astrophysik

Recently, intense attention has focused on the possibility that merging supermassive black hole binaries could be observed with both electromagnetic and gravitational waves. Such multi-messenger studies would (i) probe dark energy out to z~10, and (ii) allow follow-up studies of active galactic nuclei with central engines whose masses and spins...

20th Seminar (Part 1)

A Road to Supermassive Black Hole Merger

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Kimitake Hayasaki

Kyoto University

Hierarchical structure formation hypothesis inevitably leads to the formation of binary supermassive black holes (SMBHs) on a subparsec scale in merged galactic nuclei. However, to date there has been no unambiguous detection of such systems. In this talk, I propose how binary SMBHs merge and a feasible method to detect...

25th Seminar

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1. The effects of Chern-Simons Gravity and Electromagnetic fields in Blach Hole space-time 2. Space-time rotation induced Landau quantization

Takahashi Rohta

Tomakomai National College of Technology

1. One of the goals of galactic center black hole observations is the validation of theories of gravity. In addition, recent radio observations have revealed visibility and positional information of light source, and in hte near future we will obtain interferometer observations that will show how the magnetic radiation plasma...

March 2012   13 : 30     black holes, general relativity, and radiative transfer
24th Seminar

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Are Lyman alpha emitters the building blocks of the Milky Way?

Hidenobu Yajima

Pennsylvania State University

Strong Lyman alpha emitting galaxies have been observed in large numbers over a wide range in redshift. Such galaxies are called Lyman alpha emitters (LAEs), and they are thought to be galaxies in the early stages of evolution. However, there are still many open questions regarding their formation and evolution....

March 2012   13 : 30     LAE, cosmology, radiative transfer, and Milky Way
23rd Seminar

Image

The AGN/Starburst connection at z~2 from an IR/submillimeter point of view

Laurie Riguccini

Ehime University

It is well known nowadays that most of the mass assembly occurs at z~1-3. However, a non-negligible fraction of the star formation across cosmic time occurred within dust-enshrouded environments. One important question is therefore whether we really know the exact amount of star formation activity, which could be strongly biased...

February 2012   13 : 30     AGN, starbursts, high-z galaxies, galaxy formation, IR, and submm
22nd Seminar

Image

The effect of photo-dissociation in the mass accretion phase of PopIII.1 stars

Hajime Susa

Konan University

Studies throughout the past decade indicate that the mass of the first generation of stars was extremely large, unlike most stars in our galaxy. However, according to recent work on the mass accretion phase, the gas is likely to fragment and produce a cluster of stars, rather than accreting smoothly...

December 2011   13 : 30     PopIII stars, accretion discs, radiative feedback, and star formation
21st Seminar

Image

The formation of the first stars and galaxies

Thomas Greif

Max Planck Institut für Astrophysik

One of the final frontiers in modern cosmology is the formation of the first stars and galaxies at the end of the cosmic dark ages, when the Universe transitioned from its simple initial state to one of ever increasing complexity. I will discuss how the first bound gas clouds condensed...

September 2011   15 : 00     first stars and first galaxies
20th Seminar (Part 2)

Image

Modeling the Electromagnetic Signature of Merging Supermassive Black Holes

Takamitsu Tanaka

Max Planck Institut für Astrophysik

Recently, intense attention has focused on the possibility that merging supermassive black hole binaries could be observed with both electromagnetic and gravitational waves. Such multi-messenger studies would (i) probe dark energy out to z~10, and (ii) allow follow-up studies of active galactic nuclei with central engines whose masses and spins...

August 2011   15 : 00     SMBH, SMBH mergers, and accretion discs
20th Seminar (Part 1)

Image

A Road to Supermassive Black Hole Merger

Kimitake Hayasaki

Kyoto University

Hierarchical structure formation hypothesis inevitably leads to the formation of binary supermassive black holes (SMBHs) on a subparsec scale in merged galactic nuclei. However, to date there has been no unambiguous detection of such systems. In this talk, I propose how binary SMBHs merge and a feasible method to detect...

August 2011   15 : 00     SMBH, SMBH mergers, accretion discs, SPH, and X-rays

25th Seminar 1. The effects of Chern-Simons Gravity and Electromagnetic fields in Blach Hole space-time 2. Space-time rotation induced Landau quantization

Takahashi Rohta (Tomakomai National College of Technology)
March 2012   13 : 30     black holes, general relativity, and radiative transfer

24th Seminar Are Lyman alpha emitters the building blocks of the Milky Way?

Hidenobu Yajima (Pennsylvania State University)
March 2012   13 : 30     LAE, cosmology, radiative transfer, and Milky Way

23rd Seminar The AGN/Starburst connection at z~2 from an IR/submillimeter point of view

Laurie Riguccini (Ehime University)
February 2012   13 : 30     AGN, starbursts, high-z galaxies, galaxy formation, IR, and submm

22nd Seminar The effect of photo-dissociation in the mass accretion phase of PopIII.1 stars

Hajime Susa (Konan University)
December 2011   13 : 30     PopIII stars, accretion discs, radiative feedback, and star formation

21st Seminar The formation of the first stars and galaxies

Thomas Greif (Max Planck Institut für Astrophysik)
September 2011   15 : 00     first stars and first galaxies

20th Seminar (Part 2) Modeling the Electromagnetic Signature of Merging Supermassive Black Holes

Takamitsu Tanaka (Max Planck Institut für Astrophysik)
August 2011   15 : 00     SMBH, SMBH mergers, and accretion discs

20th Seminar (Part 1) A Road to Supermassive Black Hole Merger

Kimitake Hayasaki (Kyoto University)
August 2011   15 : 00     SMBH, SMBH mergers, accretion discs, SPH, and X-rays
  1. 1. The effects of Chern-Simons Gravity and Electromagnetic fields in Blach Hole space-time 2. Space-time rotation induced Landau quantization, Takahashi Rohta (Tomakomai National College of Technology)   March 2012  
  2. Are Lyman alpha emitters the building blocks of the Milky Way?, Hidenobu Yajima (Pennsylvania State University)   March 2012  
  3. The AGN/Starburst connection at z~2 from an IR/submillimeter point of view, Laurie Riguccini (Ehime University)   February 2012  
  4. The effect of photo-dissociation in the mass accretion phase of PopIII.1 stars, Hajime Susa (Konan University)   December 2011  
  5. The formation of the first stars and galaxies, Thomas Greif (Max Planck Institut für Astrophysik)   September 2011  
  6. Modeling the Electromagnetic Signature of Merging Supermassive Black Holes, Takamitsu Tanaka (Max Planck Institut für Astrophysik)   August 2011