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Monthly Notices of the Royal Astronomical Society Letters Volume 2019 Issue 1904

Subject Areas: Space and Planetary Science
ISSN: 1745-3925
SJR: 105

Open Access

Journal Article

Explaining the enhanced star formation rate of Jellyfish galaxies in galaxy clusters

Safarzadeh, Mohammadtaher; Loeb, Abraham

2019 Astrophysics

doi:10.1093/mnrasl/slz053

Abstract: We study the recently observed JellyFish galaxies (JFGs), which are found to have their gas content ram-pressure stripped away in galaxy clusters. These galaxies are observed to have an enhanced star formation rate of about 0.2 dex compared with a control sample of the same stellar mass...
Open Access

Journal Article

Cooling in the shade of warped transition disks

Casassus, Simon; Perez, Sebastian; Osses, Axel; Marino, Sebastian

2019 Astrophysics

doi:10.1093/mnrasl/slz059

Abstract: The mass of the gaseous reservoir in young circumstellar disks is a crucial initial condition for the formation of planetary systems, but estimates vary by orders of magnitude. In some disks with resolvable cavities, sharp inner disk warps cast two-sided shadows on the outer rings; can...
Open Access

Journal Article

Correlations between supermassive black holes, hot atmospheres, and the total masses of early type galaxies

Lakhchaura, K.; Truong, N.; Werner, N.

2019 Astrophysics

doi:10.1093/mnrasl/slz114

Abstract: We present a study of relations between the masses of the central supermassive black holes (SMBHs) and the atmospheric gas temperatures and luminosities measured within a range of radii between $R_{\rm e}$ and 5$R_{\rm e}$, for a sample of 47 early-type galaxies observed by the {\it...
Open Access

Journal Article

Evidence for CII diffuse line emission at redshift $z\sim2.6$

Yang, Shengqi; Pullen, Anthony R.; Switzer, Eric R.

2019 Astrophysics

doi:10.1093/mnrasl/slz126

Abstract: CII is one of the brightest emission lines from star-forming galaxies and is an excellent tracer for star formation. Recent work measured the CII emission line amplitude for redshifts $2

Open Access

Journal Article

Measurement of the spin of the M87 black hole from its observed twisted light

Tamburini, Fabrizio; Thidé, Bo; Della Valle, Massimo

2019 General Relativity and Quantum Cosmology

doi:10.1093/mnrasl/slz176

Abstract: We present the first observational evidence that light propagating near a rotating black hole is twisted in phase and carries orbital angular momentum (OAM). This physical observable allows a direct measurement of the rotation of the black hole. We extracted the OAM spectra from the...
Open Access

Journal Article

Observation of a possible superflare on Proxima Centauri

Kielkopf, John F.; Hart, Rhodes; Carter, Bradley D.; Marsden, Stephen C.

2019 Astrophysics

doi:10.1093/mnrasl/slz054

Abstract: We report the observation on UT 2017.07.01 of an unusually powerful flare detected in near-infrared continuum photometry of Proxima Centauri. During a campaign monitoring the star for possible exoplanet transits, we identified an increase in Sloan i' flux leading to an observed peak at...

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Monthly Notices of the Royal Astronomical Society Letters Volume 2019 Issue 1904

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