{"id":536,"date":"2015-03-15T15:13:02","date_gmt":"2015-03-15T22:13:02","guid":{"rendered":"https:\/\/www.palomar.edu\/planetarium\/?p=536"},"modified":"2017-08-08T12:06:29","modified_gmt":"2017-08-08T19:06:29","slug":"the-restless-universe-palomar-transient-factory","status":"publish","type":"post","link":"https:\/\/www.palomar.edu\/planetarium\/the-restless-universe-palomar-transient-factory\/","title":{"rendered":"The Restless Universe (Palomar Transient Factory)"},"content":{"rendered":"

April 25th, 2015<\/em><\/p>\n

with Dr. Shrinivas Kulkarni – Caltech<\/span><\/p>\n

John D. & Catherine T. MacArthur Professor of Astronomy and Planetary Science at the California Institute of Technology (Caltech) & Director, Caltech Optical Observatories Abstract of Lecture:<\/p>\n

Cosmic explosions were first noted nearly two thousand years ago. However, secure recognition and study began only a hundred years ago. What was once termed as Stella Nova (new stars) are now divided into two major families, novae and supernovae (with real distinct classes in each). Equally the variable stars have a rich phenomenology. Together, supernovae and variable stars have contributed richly to key problems in modern astrophysics: distances to galaxies, cosmography and build-up of elements in the Universe. The Palomar Transient Factory (PTF), an innovative 2-telescope system, was designed to explicitly to chart the transient sky with a particular focus on events which lie in the nova-supernova gap. PTF is now finding an extragalactic transient every 20 minutes and a Galactic (strong) variable every 10 minutes. The results so far: ultra-luminous supernovae as the end of the most massive stars in the Universe, progress in understanding the origin of Ia supernovae (which were used by astronomers to discover dark energy), discovery of new classes or sub-classes of supernovae and identification of curious double degenerates of value to future gravitational wave observatories in space.<\/p>\n","protected":false},"excerpt":{"rendered":"

April 25th, 2015 with Dr. Shrinivas Kulkarni – Caltech John D. & Catherine T. MacArthur Professor of Astronomy and Planetary Science at the California Institute of Technology (Caltech) & Director, Caltech Optical Observatories Abstract of Lecture: Cosmic explosions were first noted nearly two thousand years ago. However, secure recognition and study began only a hundred… Continue Reading The Restless Universe (Palomar Transient Factory)<\/span><\/a><\/p>\n","protected":false},"author":476,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3],"tags":[],"class_list":["post-536","post","type-post","status-publish","format-standard","hentry","category-friends-of-the-planetarium-events"],"acf":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8QaUO-8E","jetpack-related-posts":[{"id":538,"url":"https:\/\/www.palomar.edu\/planetarium\/the-new-era-of-exoplanet-direct-imaging\/","url_meta":{"origin":536,"position":0},"title":"The New Era of Exoplanet Direct Imaging","author":"Lane, Mark","date":"March 5, 2014","format":false,"excerpt":"April 26th, 2014 with Dr. Sasha Hinkley - Caltech Most of the hundreds of extrasolar planets identified in the past 15 years have been detected indirectly through careful monitoring of the planets' effect on their host star's light.\u00a0 By overcoming the extremely large brightness ratio between the stars and their\u2026","rel":"","context":"In "Friends of the Planetarium Events"","block_context":{"text":"Friends of the Planetarium Events","link":"https:\/\/www.palomar.edu\/planetarium\/category\/friends-of-the-planetarium-events\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":532,"url":"https:\/\/www.palomar.edu\/planetarium\/the-prevalence-properties-and-architectures-of-exoplanets\/","url_meta":{"origin":536,"position":1},"title":"The Prevalence, Properties, and Architectures of Exoplanets","author":"Lane, Mark","date":"March 5, 2017","format":false,"excerpt":"May 6th, 2017 with Dr. Erik Petigura, a Hubble Postdoctoral Fellow at Caltech Exoplanets orbit stars other than our Sun.\u00a0 At first, the study of these objects focused upon individual discoveries.\u00a0 But, thanks in large part to the many identifications made by NASA's Kepler Mission, the direction of exoplanet research\u2026","rel":"","context":"In "Friends of the Planetarium Events"","block_context":{"text":"Friends of the Planetarium Events","link":"https:\/\/www.palomar.edu\/planetarium\/category\/friends-of-the-planetarium-events\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1030,"url":"https:\/\/www.palomar.edu\/planetarium\/infrared-astronomy\/","url_meta":{"origin":536,"position":2},"title":"Infrared Astronomy","author":"Kardel, Scott","date":"July 16, 2018","format":false,"excerpt":"Join the Friends of the Palomar College Planetarium at 6:30 pm on Saturday, September 15th as astronomer Dr. Luisa Rebull presents an engaging talk on Infrared Astronomy. 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