Olivia H. Wilkins
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View article: Photolysis and Sublimation Chemistry of Ammonium Cyanide with Relevance to Cometary Environments
Photolysis and Sublimation Chemistry of Ammonium Cyanide with Relevance to Cometary Environments Open
Bulk nitrogen is depleted in solar system objects, including the terrestrial planets, chondritic meteorites, and comets. Recently, it was suggested that cometary nitrogen may be locked up in ammonium salts—ionic solids comprising ammonia (…
View article: Prioritizing Mentorship as Scientific Leaders
Prioritizing Mentorship as Scientific Leaders Open
Scientific careers are rarely straight paths. This article emphasizes the crucial role of mentorship in navigating scientific careers and sustaining innovation in STEMM fields. Effective mentorship can have a positive impact on graduate st…
View article: Gas-phase Ortho-to-para Ratio of Formaldehyde Formed at Low Temperatures in Laboratory Ices
Gas-phase Ortho-to-para Ratio of Formaldehyde Formed at Low Temperatures in Laboratory Ices Open
The ortho-to-para ratio (OPR) of formaldehyde (H 2 CO) has been used as a probe to estimate the formation temperature of molecules in interstellar, circumstellar, and cometary environments, relying on the assumption that nuclear spin conve…
View article: CoCCoA: Complex Chemistry in hot Cores with ALMA
CoCCoA: Complex Chemistry in hot Cores with ALMA Open
Context. Complex organic molecules (COMs), especially the oxygen-bearing species, have been observed to be abundant in the gas phase toward low-mass and high-mass protostars. Deep line surveys have been carried out only for a limited numbe…
View article: CoCCoA: Complex Chemistry in hot Cores with ALMA. Selected oxygen-bearing species
CoCCoA: Complex Chemistry in hot Cores with ALMA. Selected oxygen-bearing species Open
Complex organic molecules (COMs) have been observed to be abundant in the gas phase toward protostars. Deep line surveys have been carried out only for a limited number of well-known high-mass star forming regions using the Atacama Large M…
View article: Relationship between CH<sub>3</sub>OD Abundance and Temperature in the Orion KL Nebula
Relationship between CH<sub>3</sub>OD Abundance and Temperature in the Orion KL Nebula Open
The relative abundances of singly deuterated methanol isotopologues, [CH2DOH]/[CH3OD], in star-forming regions deviate from the statistically expected ratio of 3. In Orion KL, the nearest high-mass star-forming region to Earth, the singly …
View article: On the Relationship between CH$_3$OD Abundance and Temperature in the Orion KL Nebula
On the Relationship between CH$_3$OD Abundance and Temperature in the Orion KL Nebula Open
The relative abundances of singly-deuterated methanol isotopologues, [CH$_{2}$DOH]/[CH$_{3}$OD], in star-forming regions deviate from the statistically expected ratio of 3. In Orion KL, the nearest high-mass star-forming region to Earth, t…
View article: Mapping Physical Parameters in Orion KL at High Spatial Resolution
Mapping Physical Parameters in Orion KL at High Spatial Resolution Open
The Orion Kleinmann-Low nebula (Orion KL) is notoriously complex and exhibits a range of physical and chemical components. We conducted high-angular-resolution (subarcsecond) observations of 13 CH 3 OH ν = 0 (∼0.″3 and ∼0.″7) and CH 3 CN ν…
View article: Simulating the Multi-epoch Direct Detection Technique to Isolate the Thermal Emission of the Non-transiting Hot Jupiter HD187123b
Simulating the Multi-epoch Direct Detection Technique to Isolate the Thermal Emission of the Non-transiting Hot Jupiter HD187123b Open
We report the 6.5 σ detection of water from the hot Jupiter HD187123b with a Keplerian orbital velocity K p of 53 ± 13 km s −1 . This high-confidence detection is made using a multi-epoch, high-resolution, cross-correlation technique, and …
View article: HIGH RESOLUTION SPECTROSCOPY OF 3-METHYLBUTYRONITRILE BETWEEN 2 AND 400 GHZ
HIGH RESOLUTION SPECTROSCOPY OF 3-METHYLBUTYRONITRILE BETWEEN 2 AND 400 GHZ Open
Collision induced absorption (CIA) coefficients of the a$^{1}$$\\Delta$$_{g}$-X$^{3}$$\\Sigma$$^{-}$$_{g}$(v=0-0) band of oxygen have been measured using cavity ring down spectroscopy (CRDS) technique at room temperature. More precisely, t…
View article: Rotational spectroscopy of the two conformers of 3-methylbutyronitrile (C<sub>4</sub>H<sub>9</sub>CN) between 2 and 400 GHz
Rotational spectroscopy of the two conformers of 3-methylbutyronitrile (C<sub>4</sub>H<sub>9</sub>CN) between 2 and 400 GHz Open
We present high-resolution rotational spectroscopy of the two conformers of 3-methylbutyronitrile (C 4 H 9 CN). Spectra were taken between 2 and 24 GHz by means of Fourier transform microwave spectroscopy. Spectra between 36 and 403 GHz we…
View article: Integrating Course Material and Application: A Progressive Writing Assignment Applied to an Astrochemistry Tutorial
Integrating Course Material and Application: A Progressive Writing Assignment Applied to an Astrochemistry Tutorial Open
A major challenge in teaching is helping students integrate course concepts to understand the big picture of a field and apply those concepts in new situations. To address this challenge in a tutorial course about astrochemistry (taught by…
View article: TRACING THE ORIGINS OF NITROGEN BEARING ORGANICS TOWARD ORION KL WITH ALMA
TRACING THE ORIGINS OF NITROGEN BEARING ORGANICS TOWARD ORION KL WITH ALMA Open
A comprehensive analysis of a broadband 1.2 THz wide spectral survey of the Orion Kleinmann-Low nebula (Orion KL) has shown that nitrogen bearing complex organics trace systematically hotter gas than O-bearing organics toward this source. …
View article: SPECTROSCOPIC STUDY AND ASTRONOMICAL DETECTION OF VIBRATIONALLY EXCITED n-PROPYL CYANIDE
SPECTROSCOPIC STUDY AND ASTRONOMICAL DETECTION OF VIBRATIONALLY EXCITED n-PROPYL CYANIDE Open
We have obtained ALMA data of Sagittarius (Sgr for short) B2(N) between 84.0 and 114.4 GHz in its Early Science Cycles 0 and 1.We have focused our analyses on the northern, secondary hot molecular core Sgr B2(N2) because of the smaller lin…
View article: CARBON CHAINS AND METHANOL TOWARD EMBEDDED PROTOSTARS*
CARBON CHAINS AND METHANOL TOWARD EMBEDDED PROTOSTARS* Open
Large interstellar organic molecules are potential precursors of prebiotic molecules. Their formation pathways and chemical relationships with one another and simpler molecules are therefore of great interest. In this paper we address the …