A catalog of 132,684 clusters of galaxies identified from Sloan Digital Sky Survey III
ZL Wen, JL Han, FS Liu - The Astrophysical Journal Supplement …, 2012 - iopscience.iop.org
Using the photometric redshifts of galaxies from the Sloan Digital Sky Survey III (SDSS-III),
we identify 132,684 clusters in the redshift range of 0.05⩽ z< 0.8. Monte Carlo simulations …
we identify 132,684 clusters in the redshift range of 0.05⩽ z< 0.8. Monte Carlo simulations …
MUSE Analysis of Gas around Galaxies (MAGG) – II: metal-enriched halo gas around z ∼ 1 galaxies
We present a study of the metal-enriched cool halo gas traced by Mg ii absorption around
228 galaxies at z∼ 0.8–1.5 within 28 quasar fields from the MUSE Analysis of Gas around …
228 galaxies at z∼ 0.8–1.5 within 28 quasar fields from the MUSE Analysis of Gas around …
Quasar quartet embedded in giant nebula reveals rare massive structure in distant universe
All galaxies once passed through a hyperluminous quasar phase powered by accretion onto
a supermassive black hole. But because these episodes are brief, quasars are rare objects …
a supermassive black hole. But because these episodes are brief, quasars are rare objects …
Metal-enriched halo gas across galaxy overdensities over the last 10 billion years
We present a study of metal-enriched halo gas traced by Mg ii and C iv absorption at z< 2 in
the MUSE Analysis of Gas around Galaxies survey and the Quasar Sightline and Galaxy …
the MUSE Analysis of Gas around Galaxies survey and the Quasar Sightline and Galaxy …
The Cosmic Ultraviolet Baryon Survey (CUBS) – VI. Connecting physical properties of the cool circumgalactic medium to galaxies at z ≈ 1
This paper presents a newly established sample of 19 unique galaxies and galaxy groups at
redshift z= 0.89–1.21 in six QSO fields from the Cosmic Ultraviolet Baryon Survey (CUBS) …
redshift z= 0.89–1.21 in six QSO fields from the Cosmic Ultraviolet Baryon Survey (CUBS) …
Quasars probing quasars. VII. The pinnacle of the cool circumgalactic medium surrounds massive z∼ 2 galaxies
JX Prochaska, MW Lau, JF Hennawi - The Astrophysical Journal, 2014 - iopscience.iop.org
We survey the incidence and absorption strength of the metal-line transitions C ii 1334 and
C iv 1548 from the circumgalactic medium (CGM) surrounding z∼ 2 quasars, which act as …
C iv 1548 from the circumgalactic medium (CGM) surrounding z∼ 2 quasars, which act as …
Entropy of null surfaces and dynamics of spacetime
T Padmanabhan, A Paranjape - … Review D—Particles, Fields, Gravitation, and …, 2007 - APS
The null surfaces of a spacetime act as oneway membranes and can block information for a
corresponding family of observers (timelike curves). Since lack of information can be related …
corresponding family of observers (timelike curves). Since lack of information can be related …
Selecting quasars by their intrinsic variability
We present a new and simple technique for selecting extensive, complete, and pure quasar
samples, based on their intrinsic variability. We parameterize the single-band variability by a …
samples, based on their intrinsic variability. We parameterize the single-band variability by a …
Deep learning approach for classifying, detecting and predicting photometric redshifts of quasars in the Sloan Digital Sky Survey stripe 82
J Pasquet-Itam, J Pasquet - Astronomy & Astrophysics, 2018 - aanda.org
We have applied a convolutional neural network (CNN) to classify and detect quasars in the
Sloan Digital Sky Survey Stripe 82 and also to predict the photometric redshifts of quasars …
Sloan Digital Sky Survey Stripe 82 and also to predict the photometric redshifts of quasars …
Characterizing circumgalactic gas around massive ellipticals at z ∼ 0.4 – I. Initial results
We present a new Hubble Space Telescope Cosmic Origins Spectrograph (COS) absorption-
line survey to study halo gas around 16 luminous red galaxies (LRGs) at= 0.21–0.55. The …
line survey to study halo gas around 16 luminous red galaxies (LRGs) at= 0.21–0.55. The …