Publications (8)
A High-Velocity Narrow Absorption Line Outflow in the Quasar J212329.46-005052.9
F. Hamann, N. Kanekar, J. X. Prochaska +5
We report on a variable high-velocity narrow absorption line outflow in the redshift 2.3 quasar J2123-0050. Five distinct outflow systems are detected with velocity shifts from -97…
The EXPLORE Project: A Deep Search for Transiting Extra-Solar Planets
H. K. C. Yee, G. Mallen-Ornelas, S. Seager +5
Searching for transits provides a very promising technique for finding close-in extra-solar planets. Transiting planets present the advantage of allowing one to determine physical…
Galaxy counterparts of intervening high-z sub-DLAs/DLAs and MgII absorbers towards gamma-ray bursts
S. Schulze, J. P. U. Fynbo, B. Milvang-Jensen +19
We present the first search for galaxy counterparts of intervening high-z (2<z< 3.6) sub-DLAs and DLAs towards GRBs. Our final sample comprises of five intervening sub-DLAs and DLA…
Clues to the nature of high-redshift OVI absorption systems from their (lack of) small-scale structure
S. Lopez, S. Ellison, S. D'Odorico +1
We present results of the first survey of high-redshift (<z> ~ 2.3) OVI absorption systems along parallel lines of sight toward two lensed QSOs. After a careful and well-defined se…
The evolution of the Si IV content in the Universe from the epoch of reionization to cosmic noon
V. D'Odorico, K. Finlator, S. Cristiani +9
We investigate the abundance and distribution of metals in the high-redshift intergalactic medium and circum-galactic medium through the analysis of a sample of almost 600 SiIV abs…
LRP2020: Machine Learning Advantages in Canadian Astrophysics
K. A. Venn, S. Fabbro, A Liu +12
The application of machine learning (ML) methods to the analysis of astrophysical datasets is on the rise, particularly as the computing power and complex algorithms become more po…
Evidence of First Stars-enriched Gas in High-redshift Absorbers
A. Saccardi, S. Salvadori, V. D'Odorico +6
The first stars were born from chemically pristine gas. They were likely massive, and thus they rapidly exploded as supernovae, enriching the surrounding gas with the first heavy e…
An optical supernova associated with the X-ray flash XRF 060218
E. Pian, P. A. Mazzali, N. Masetti +42
Long-duration gamma-ray bursts (GRBs) are associated with type Ic supernovae that are more luminous than average and that eject material at very high velocities. Less-luminous supe…