Monthly View
Monthly View
Flat View
Flat View
Weekly View
Weekly View
Daily View
Daily View
Categories
Categories
Search
Search

Event: '"Probing The Origin, Powering And Geometry Of Lyman-Alpha Blobs...", Andrew Humphrey (CAUP)'

Seminars
CENTRA Seminars
Date: Tuesday, December 04, 2012 At 02:30 PM
Duration: 1 Hour
Contact Info:
Jorge Rocha
Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
URL:

Full Title:

"Probing the Origin, Powering and Geometry of Lyman-Alpha Blobs

around High-z Radio-Loud Galaxies", Andrew Humphrey (Centro de Astrofisica da Universidade do Porto) 


Abstract:

Luminous high-redshift Ly-alpha blobs (LABS), often also known as

Ly-alpha 'nebulae', ‘halos’ or ‘fuzz’ in the literature, promise to

yield important insights into the physics of massive galaxy formation.

As prodigious sources of HI Ly-alpha photons, with ~10-100 kpc spatial

extents, they provide an efficient way to select distant galaxies (or

proto-galaxies) expected to be undergoing significant mass-assembly.

In this talk, I will present results from a recently accepted paper in

which we used long slit spectroscopy from GTC+OSIRIS to examine the

geometry, powering, and origin of the LAB and an absorption line

system associated with a radio-loud quasar at z=2.54.  I will also

discuss some interesting new results from long-slit spectropolarimetry

of LABs associated with z>2 radio galaxies, and their related

continuum structures.



Search Calendar


 
April 2021 May 2021 June 2021
Mo Tu We Th Fr Sa Su
Week 17 1 2
Week 18 3 4 5 6 7 8 9
Week 19 10 11 12 13 14 15 16
Week 20 17 18 19 20 21 22 23
Week 21 24 25 26 27 28 29 30
Week 22 31

Upcoming Events

There are no upcoming events currently scheduled.