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Solar Seminar (13:30-15:00 Monday, Room 504 5th floor building 4) Access

Next presenters

Date	Time	Section	Speaker	File
07-08	13:30-14:00	short	A. Tei	upload or download
	14:00-15:00	main	A.D. Kawamura	upload or download
07-22	13:30-14:00	short	D. Yamasaki	upload or download
	14:00-15:00	main	C. Denis	upload or download

For Speakers

Presentation time for speaker is: main : 40 minutes as a guide, and 20 minutes discussion.
short : 20 minutes as a guide, and 10 minutes discussion.
Contents of talk are: main : about your study
short : review of recent interesting paper and share information of recent study of the Sun.
Language of slide and talks: Master cource students : Language of slide and talk could be Japanese
Doctor cource students and over : Slide must be English, and talking language could be Japanese
(If those who could not understand Japanese attend the seminar, it is preferable that you talk in English)
Title and Abstract: Please send the title and abstract of your presentation by the day before.
Presentation files: Please upload your presentation files by the start of the seminar.
If the presentation file is very big, please zip the file before uploading.

For Audiences

Honoring speakers: Plase clap your hands as a closure of a presentation to express your respection to a speaker.

For everyone

Publication sharing: Please send a copy of the submitted version of any paper on which they are working to the zasshikai mailing list just after submission

Useful webpage list for solar observers.

main speaker
Shibata, Ichimoto, Nagata, Ueno, Asai, Ishii, Nishida, Otsuji, Isobe,
Kawamura, Denis, Kou, Sakaue, Tei, Namekata,
Kihara, Kotani, Yamasaki, Tanaka, Tomino,

Short speaker
Shibata, Ichimoto, Nagata, Ueno, Asai, Ishii, Nishida, Otsuji, Isobe,
Kawamura, Denis, Kou, Sakaue, Tei, Namekata,
Kihara, Kotani, Yamasaki, Tanaka, Tomino,

Date		Name	Title	Abstract	File
04-08	Long	K. Shibata	Solar Physics in future 2019		pdf 35MB
04-15	Long	K. Ichimoto	Solar Projects in 2019		pdf 13MB
04-22	short	K. Namekata	Stellar activity and rotation of the planet host Kepler-17 from long-term space-borne photometory	I'll introduce the following paper "Stellar activity and rotation of the planet host Kepler-17 from long-term space-borne photometory". A. F. Lanza, Y. Netto, A. S. Bonomo, H. Parviainen, A. Valio, S. Aigrain https://arxiv.org/abs/1904.04489	pptx 43MB
	main	A. Asai	DKIST		pdf 26MB
05-13	short	A.D. Kawamura			pdf 2.9MB
	main	S. Nagata			pdf 6MB
05-20	short	C. Denis	Mapping the magnetic field of flare coronal loops	in the short talk I am going to introduce the following paper: "Mapping the magnetic field of flare coronal loops", by Kuridze et al. 2019. https://iopscience.iop.org/article/10.3847/1538-4357/ab08e9/meta I will also briefly discuss on the possibility to derive some physical parameters (e.g. temperature, electron density) of the post-flare loop observed by SDDI on 2017 Sep. 10. This based on the theoretical correlations found by Heinzel, Gouttebroze, Vial (1994).	pdf 9.1MB
	main	T.T. Ishii	Introduction of SMART (mainly SDDI) at Hida Observatory, and Recent Solar Activities Observed with SDDI	I would like to talk about introduction of SMART (mainly SDDI) at Hida Obs., and recent solar activities observed with SDDI.	pptx 4.5MB
06-03	short	Y.W. Huang
	main	S. Ueno	40 Years History of Spectroscopic Researches using Domeless Solar Telescope of Hida Observatory (1979 – 2018)	In this year, just 40 years passed after the Domeless Solar Telescope (DST) was built at Hida Observatory in 1979. In this talk, I would like to look back on spectroscopic researches that have been performed in the past 40 years with classifying them by each observation object, as follows. Photosphere (Quiet Region) - Convection - Differential Rotation - Gravitational Redshift - Line Formation Chromospheric Small Activities - Ellerman Bomb & Jet - Grains, Oscillation - Spicule Prominence & Dark Filament - Quiescent Prominence & Filament - Active Prominence & Filament Flare - Kernel (Asymmetry) - Micro-flare - Surge Sunspot & Active Region - Evershed Effect - Emerging Flux	pdf 19MB
06-10	short	K. Kihara	Solar farside magnetograms from deep learning analysis of STEREO/EUVI data	In my short talk, I will introduce the following paper: "Solar farside magnetograms from deep learning analysis of STEREO/EUVI data" Kim, T., Park, E., Lee, H., et al. 2019, Nature Astronomy https://www.nature.com/articles/s41550-019-0711-5	pdf 4.3MB
	main	K. Nishida	The Direct Relation between the Duration of Magnetic Reconnection and the Evolution of GOES Light Curves in Solar Flares	In today's solar seminar, I will talk about following papers: "The Direct Relation between the Duration of Magnetic Reconnection and the Evolution of GOES Light Curves in Solar Flares" Jeffrey W. Reep and Shin Toriumi, 2018, ApJ, 851:4 "Dependence of Durations of Solar Flares on the Size of Inflow Regions", Keisuke Nishida, Naoto Nishizuka, and Shibata Kazunari, in prep	pdf 2.3MB
06-17	M2 interim report	K. Kihara	深層学習による画像認識を用いた太陽フレア予報システムの開発	pdf 3.1MB
	M2 interim report	Y. Kotani	太陽光球で起こるアネモネジェットの数値的研究	pptx 25MB
	M2 interim report	D. Yamasaki	飛騨天文台SMART望遠鏡偏光キャリブレーション	pdf 3.5MB
06-24	short	T. Sakaue		In the tomorrow's seminar, I will shortly introduce the discussion in the following conference: 1. PIPA 2019 6/3 - 6/7 @ Palma de Mallorca (Spain) (http://solar1.uib.es/pipa2019/) 2. TRAPPIST-1 Conference 6/11 - 6/14 @ Liege (Belgium) (https://events.uliege.be/trappist-1/)	pdf 7.0MB
	main	K. Otsuji	Preparing for DKIST: An Introduction to ground based data	In the next solar seminar, I will report the summery of the workshop held at Boulder in three weeks ago. Title: "Preparing for DKIST: An Introduction to ground based data".	pptx 101MB
07-01	short	Y. Kotani	Chromospheric Cannonballs on the Sun	In my short talk, I will introduce the following paper. "Chromospheric Cannonballs on the Sun" Shuhong Yang, Jun Zhang, Xiaohong Li, Zhong Liu, Yongyuan Xiang https://arxiv.org/abs/1906.10850 (ApJL, accepted 2019 June 25)	pdf 4.8MB
	main	H. Isobe	IRIS/SDDI observation of an emerging flux region	I will be talking about “IRIS/SDDI observation of an emerging flux region” on which I have been working with Durgesh Tripathi and his student, also with a help from Otsuji-san about the SDDI data.	pptx 34MB
07-08	short	A. Tei	Spectral Diagnosis of Mg II and Hα Lines during the Initial Stage of an M6.5 Solar Flare	In the tomorrow's short talk, I will introduce Huang et al. 2019, ApJL, 878, 15.The title is "Spectral Diagnosis of Mg II and Hα Lines during the Initial Stage of an M6.5 Solar Flare". https://ui.adsabs.harvard.edu/abs/2019ApJ...878L..15H/abstract	MB
	main	A.D. Kawamura			MB
07-22	short	D. Yamasaki	Very Fast Helicity Injection Leading to Critically Stable State and Large Eruptive Activity in Solar Active Region NOAA 12673	In my tomorrow’s solar seminar short talk, I will introduce “Very Fast Helicity Injection Leading to Critically Stable State and Large Eruptive Activity in Solar Active Region NOAA 12673” (Vemareddy 2019):https://ui.adsabs.harvard.edu/abs/2019ApJ...872..182V/abstract	pdf 17MB
	main	C. Denis	Fast-filament eruption detected by SMART/SDDI on 2017 April 23	Tomorrow in main talk of the solar seminar, I will present progress about my analysis of the "fast-filament eruption detected by SMART/SDDI on 2017 April 23". In the first part of my presentation I am going to discuss the kinematics, while in the second part I will show a very rough estimation of the kinetic and potential energies of the filament eruption.	MB
07-29	No seminar

Date

Name

Title

Abstract

File

04-08

Long

K. Shibata

Solar Physics in future 2019

pdf
35MB

04-15

Long

K. Ichimoto

Solar Projects in 2019

pdf
13MB

04-22

short

K. Namekata

Stellar activity and rotation of the planet host Kepler-17 from long-term space-borne photometory

I'll introduce the following paper "Stellar activity and rotation of the planet host Kepler-17 from long-term space-borne photometory". A. F. Lanza, Y. Netto, A. S. Bonomo, H. Parviainen, A. Valio, S. Aigrain https://arxiv.org/abs/1904.04489

pptx
43MB

main

A. Asai

DKIST

pdf
26MB

05-13

short

A.D. Kawamura

pdf
2.9MB

main

S. Nagata

pdf
6MB

05-20

short

C. Denis

Mapping the magnetic field of flare coronal loops

in the short talk I am going to introduce the following paper: "Mapping the magnetic field of flare coronal loops", by Kuridze et al. 2019. https://iopscience.iop.org/article/10.3847/1538-4357/ab08e9/meta I will also briefly discuss on the possibility to derive some physical parameters (e.g. temperature, electron density) of the post-flare loop observed by SDDI on 2017 Sep. 10. This based on the theoretical correlations found by Heinzel, Gouttebroze, Vial (1994).

pdf
9.1MB

main

T.T. Ishii

Introduction of SMART (mainly SDDI) at Hida Observatory, and Recent Solar Activities Observed with SDDI

I would like to talk about introduction of SMART (mainly SDDI) at Hida Obs., and recent solar activities observed with SDDI.

pptx
4.5MB

06-03

short

Y.W. Huang

main

S. Ueno

40 Years History of Spectroscopic Researches using Domeless Solar Telescope of Hida Observatory (1979 – 2018)

In this year, just 40 years passed after the Domeless Solar Telescope (DST) was built at Hida Observatory in 1979. In this talk, I would like to look back on spectroscopic researches that have been performed in the past 40 years with classifying them by each observation object, as follows.

Photosphere (Quiet Region)
- Convection
- Differential Rotation
- Gravitational Redshift
- Line Formation
Chromospheric Small Activities
- Ellerman Bomb & Jet
- Grains, Oscillation
- Spicule
Prominence & Dark Filament
- Quiescent Prominence & Filament
- Active Prominence & Filament
Flare
- Kernel (Asymmetry)
- Micro-flare
- Surge
Sunspot & Active Region
- Evershed Effect
- Emerging Flux

pdf
19MB

06-10

short

K. Kihara

Solar farside magnetograms from deep learning analysis of STEREO/EUVI data

In my short talk, I will introduce the following paper:
"Solar farside magnetograms from deep learning analysis of STEREO/EUVI data" Kim, T., Park, E., Lee, H., et al. 2019, Nature Astronomy
https://www.nature.com/articles/s41550-019-0711-5

pdf
4.3MB

main

K. Nishida

The Direct Relation between the Duration of Magnetic Reconnection and the Evolution of GOES Light Curves in Solar Flares

In today's solar seminar, I will talk about following papers:
"The Direct Relation between the Duration of Magnetic Reconnection and the Evolution of GOES Light Curves in Solar Flares" Jeffrey W. Reep and Shin Toriumi, 2018, ApJ, 851:4

"Dependence of Durations of Solar Flares on the Size of Inflow Regions", Keisuke Nishida, Naoto Nishizuka, and Shibata Kazunari, in prep

pdf
2.3MB

06-17

M2 interim report

K. Kihara

深層学習による画像認識を用いた太陽フレア予報システムの開発

pdf
3.1MB

M2 interim report

Y. Kotani

太陽光球で起こるアネモネジェットの数値的研究

pptx
25MB

M2 interim report

D. Yamasaki

飛騨天文台SMART望遠鏡偏光キャリブレーション

pdf
3.5MB

06-24

short

T. Sakaue

In the tomorrow's seminar, I will shortly introduce the discussion in the following conference:
1. PIPA 2019 6/3 - 6/7 @ Palma de Mallorca (Spain) (http://solar1.uib.es/pipa2019/)
2. TRAPPIST-1 Conference 6/11 - 6/14 @ Liege (Belgium) (https://events.uliege.be/trappist-1/)

pdf
7.0MB

main

K. Otsuji

Preparing for DKIST: An Introduction to ground based data

In the next solar seminar, I will report the summery of the workshop held at Boulder in three weeks ago.
Title: "Preparing for DKIST: An Introduction to ground based data".

pptx
101MB

07-01

short

Y. Kotani

Chromospheric Cannonballs on the Sun

In my short talk, I will introduce the following paper.
"Chromospheric Cannonballs on the Sun"
Shuhong Yang, Jun Zhang, Xiaohong Li, Zhong Liu, Yongyuan Xiang
https://arxiv.org/abs/1906.10850
(ApJL, accepted 2019 June 25)

pdf
4.8MB

main

H. Isobe

IRIS/SDDI observation of an emerging flux region

I will be talking about
“IRIS/SDDI observation of an emerging flux region”
on which I have been working with Durgesh Tripathi and his student, also with a help from Otsuji-san about the SDDI data.

pptx
34MB

07-08

short

A. Tei

Spectral Diagnosis of Mg II and Hα Lines during the Initial Stage of an M6.5 Solar Flare

In the tomorrow's short talk, I will introduce Huang et al. 2019, ApJL, 878, 15.The title is "Spectral Diagnosis of Mg II and Hα Lines during the Initial Stage of an M6.5 Solar Flare".
https://ui.adsabs.harvard.edu/abs/2019ApJ...878L..15H/abstract

main

A.D. Kawamura

07-22

short

D. Yamasaki

Very Fast Helicity Injection Leading to Critically Stable State and Large Eruptive Activity in Solar Active Region NOAA 12673

In my tomorrow’s solar seminar short talk, I will introduce “Very Fast Helicity Injection Leading to Critically Stable State and Large Eruptive Activity in Solar Active Region NOAA 12673” (Vemareddy 2019):https://ui.adsabs.harvard.edu/abs/2019ApJ...872..182V/abstract

pdf
17MB

main

C. Denis

Fast-filament eruption detected by SMART/SDDI on 2017 April 23

Tomorrow in main talk of the solar seminar, I will present progress about my analysis of the "fast-filament eruption detected by SMART/SDDI on 2017 April 23".
In the first part of my presentation I am going to discuss the kinematics, while in the second part I will show a very rough estimation of the kinetic and potential energies of the filament eruption.

07-29

No seminar

Date

Name

Title

Abstract

File

10-07

short

S. Nagata

main

Y.W. Huang

10-21

short

K. Ueno

main

T. Sakaue

10-28

short

A. Asai

main

A. Tei

11-11

short

T.T. Ishii

main

K. Kihara

11-18

short

K. Nishida

main

Y. Kotani

11-25

short

K. Otsuji

main

D. Yamasaki

12-02

short

H. Isobe

main

TBD

12-09

short

TBD

main

TBD

12-16

D2 interim report

K. Namekata

01-06

D3 presentation

C. Denis

D3 presentation

Y.W. Huang

D3 presentation

T. Sakaue

D3 presentation

A. Tei

01-20

M2 presentation

K. Kihara

M2 presentation

Y. Kotani

M2 presentation

D. Yamasaki