Near-Ultraviolet Observations of CS 29497-030: New Constraints on Neutron-Capture Nucleosynthesis Processes

ABSTRACT The exoplanet WASP-12b is the prototype for the emerging class of ultrahot, Jupiter-mass exoplanets. Past models have predicted – and near-ultraviolet observations have shown – that this planet is losing mass. We present an analysis of two sets of 3.6 and 4.5 $\mu \rm{m}$Spitzer phase curve observations of the system which show clear evidence of infrared radiation from gas stripped from the planet, and the gas appears to be flowing directly toward or away from the host star. This accretion signature is only seen at 4.5 $\mu \rm{m}$, not at 3.6 $\mu \rm{m}$, which is indicative either of CO emission at the longer wavelength or blackbody emission from cool, ≲600 K gas. It is unclear why WASP-12b is the only ultrahot Jupiter to exhibit this mass-loss signature, but perhaps WASP-12b’s orbit is decaying as some have claimed, while the orbits of other exoplanets may be more stable; alternatively, the high-energy irradiation from WASP-12A may be stronger than the other host stars. We also find evidence for phase offset variability at the level of 6.4σ (46.2°) at 3.6 $\mu \rm{m}$.

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Near Ultraviolet Observations of Polana, Eulalia, and Themis Families: Origin of Ryugu and Bennu

10.5194/epsc2021-283 ◽

2021 ◽

Author(s):

Eri Tatsumi ◽

Julia de León ◽

Marcel Popescu ◽

Javier Licandro ◽

Fernando Tinaut

Keyword(s):

Near Ultraviolet ◽

Ultraviolet Observations

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Near‐Ultraviolet Observations of HD 221170: New Insights into the Nature ofr‐Process–rich Stars

The Astrophysical Journal ◽

10.1086/504069 ◽

2006 ◽

Vol 645 (1) ◽

pp. 613-633 ◽

Cited By ~ 137

Author(s):

Inese I. Ivans ◽

Jennifer Simmerer ◽

Christopher Sneden ◽

James E. Lawler ◽

John J. Cowan ◽

...

Keyword(s):

Near Ultraviolet ◽

Ultraviolet Observations

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The High‐Excitation Planetary Nebula NGC 246: Optical and Near‐Ultraviolet Observations and Two‐dimensional Numerical Models

The Astrophysical Journal ◽

10.1086/377123 ◽

2003 ◽

Vol 594 (2) ◽

pp. 874-887 ◽

Cited By ~ 12

Author(s):

Andrew Szentgyorgyi ◽

John Raymond ◽

Jose Franco ◽

Eva Villaver ◽

Luis Lopez‐Martin

Keyword(s):

Planetary Nebula ◽

Numerical Models ◽

Two Dimensional ◽

High Excitation ◽

Near Ultraviolet ◽

Ultraviolet Observations

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Glioblastom - Wie effektiv ist die Boron-Neutron-Capture-Therapie?

RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren ◽

10.1055/s-0030-1265719 ◽

2010 ◽

Vol 182 (11) ◽

pp. 930-930

Keyword(s):

Neutron Capture ◽

Boron Neutron Capture

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Accelerators and Neutron Capture Therapy

10.1063/1.1512037 ◽

2002 ◽

Author(s):

A. A. Burlon

Keyword(s):

Neutron Capture ◽

Neutron Capture Therapy

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A Solvent Free Synthetic Route for Cerium(IV) Metal-Organic Frame-works with UiO-66 Architecture and Their Photocatalytic Application

10.26434/chemrxiv.9199634.v1 ◽

2019 ◽

Author(s):

Matteo Campanelli ◽

Tiziana Del Giacco ◽

Filippo De Angelis ◽

Edoardo Mosconi ◽

Marco Taddei ◽

...

Keyword(s):

Density Functional ◽

Chemical Oxidation ◽

Solvent Free ◽

Cerium Ammonium Nitrate ◽

Benzylic Alcohols ◽

Near Ultraviolet ◽

Photocatalytic Application ◽

Activity Density ◽

Ultraviolet Light Irradiation ◽

Metal Organic

<div> <p>A novel solvent-free synthesis for Ce-UiO-66 metal-organic frameworks (MOFs) is presented. The MOFs are obtained by simply grinding the reagents, cerium ammonium nitrate (CAN) and the carboxylic linkers, in a mortar for few minutes with the addition of a small amount of acetic acid (AcOH) as modulator (1.75 eq, o.1 ml). The slurry is then transferred into a 1 ml vial and heated at 120°C for 1 day. The MOFs have been characterized for their composition, crystallinity and porosity and employed as heterogenous catalysts for the photo-oxidation reaction of substituted benzylic alcohols to benzaldaldehydes under near ultraviolet light irradiation. The catalytic performances, such as yield, conversion and kinetics, exceed those of similar systems studied by chemical oxidation and using Ce-MOF as catalyst. Moreover, the MOFs were found to be reusable up to three cycles without loss of activity. Density functional theory (DFT) calculations gave an estimation of the band-gap shift due to the different nature of the linkers used and provide useful information on the catalytic activity experimentally observed.</p> </div>

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An Infrared Microscope for Use on a Focused Ion Beam for Circuit Edit and Backside Edit Applications

ISTFA 2015: Conference Proceedings from the 41st International Symposium for Testing and Failure Analysis ◽

10.31399/asm.cp.istfa2015p0097 ◽

2015 ◽

Author(s):

Alexander Richards ◽

Matthew Weschler ◽

Michael Durller

Keyword(s):

Focused Ion Beam ◽

Near Infrared ◽

Ion Beam ◽

Visible Spectrum ◽

Camera System ◽

Buried Structures ◽

Ir Camera ◽

Area Of Interest ◽

Near Ultraviolet ◽

Infrared Microscope

Abstract To help solve the navigational problem, i.e., being able to successfully locate a circuit for probing or editing without destroying chip functionality, a near-infrared (NIR), near-ultraviolet (NUV), and visible spectrum camera system was developed that attaches to most focused ion beam (FIB) or scanning electron microscope vacuum chambers. This paper reviews the details of the design and implementation of the NIR/NUV camera system, as instantiated upon the FEI FIB 200, with a particular focus on its use for the visualization of buried structures, and also for non-destructive real time area of interest location and end point detection. It specifically considers the use of the micro-optical camera system for its benefit in assisting with frontside and backside circuit edit, as well as other typical FIB milling activities. The quality of the image obtained by the IR camera rivals or exceeds traditional optical based imaging microscopy techniques.

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