APCTP	■ Introduction · Greetings · Milestones · Organization Chart · Board Members · Staff Members · Former Board Members · Annual Reports · APCTP Logo · Contact us ■ Members · Member Countries · Partnership Institutions ■ Media · APCTP in Media · AAPPS Bulletin ■ Visitor Information · Plan Your Visit · Directions · Tips for Visitors · Facilities Guide · Map ■ Sponsors

Activities	■ Scientific Activities · Scientific Programs · Seminars & Lectures · ICTP Affiliated Center (ICAC) · Scientific Calendar · Call for Programs · Past Scientific Programs · Past Seminars & Lectures · Payment ■ Awards and Visitors · Benjamin Lee Professorship · Visitors · Visitor Information · Visitor Application ■ Outreach Programs · Web Journal <Crossroads> · APCTP Books · Events · Science at Pohang · Past Events

Research	■ Junior Research Groups ■ Young Scientist Training Program ■ Senior Advisory Group ■ APCTP-POSTECH Fellows ■ Publications

Asia Pacific Network	■ Academic Activities in the AP Region · Seminars at IBS: Theoretical Physics of Complex Systems · Center For QUANTUM SPACETIME · Association of Asia Pacific Physical Societies · FIST - Asia Network on HEP · ANPhA - Asian Nuclear Physics Association · APCTP Japan Committee · ICTP Asian Network on Condensed Matter and Complex Systems

Seminars & Lectures

* TITLE

Discovery of cosmic acceleration by supernova observations and the current status of dark energy model constraints

* SPEAKERS

Name	Affiliation	E-mail
Chan-Gyung Park	Kyungpook National University

* HOST(Applicant)

Name	Affiliation	E-mail
Ki Young Choi	APCTP

* DATE / TIME

2011-10-18, 2pm, seminar room

* ABSTRACT

Recently, the Nobel Prize in Physics 2011 was awarded to Saul Perlmutter,
Brian P. Schmidt and Adam G. Riess for the discovery of the accelerating
expansion of the Universe through observations of distant supernovae.
In this seminar, I briefly summarize how they discovered the so-called
cosmic dark energy by re-introducing the cosmological constant to explain
their observations of high-redshift type Ia supernovae (SNIa).
Observations of the large-scale structure (LSS) of galaxies and the
cosmic microwave background (CMB) anisotropy also imply the presence
of a substantial amount of agent with repulsive nature like the
cosmological constant. I present the current observational constraints
on some dark energy models by recent SNIa, LSS, and CMB data.

Map

How to get to APCTP

Scientific Activities Calendar

Scientific programs

Modal title

Modal title