Jennifer B. Bergner
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View article: Locked in ice: how pebble drift and volatile entrapment can significantly impact carbon and oxygen ratios in evolving protoplanetary discs
Locked in ice: how pebble drift and volatile entrapment can significantly impact carbon and oxygen ratios in evolving protoplanetary discs Open
The complex interplay between the growth, drift, and sublimation of ice-covered pebbles can strongly influence the volatile distribution and evolution of disc composition, and therefore impact the composition of forming planets. Classic pe…
View article: Locked In Ice: how Pebble Drift and Volatile Entrapment can Significantly Impact Carbon and Oxygen Ratios in Evolving Protoplanetary Discs
Locked In Ice: how Pebble Drift and Volatile Entrapment can Significantly Impact Carbon and Oxygen Ratios in Evolving Protoplanetary Discs Open
The complex interplay between the growth, drift, and sublimation of ice-covered pebbles can strongly influence the volatile distribution and evolution of disc composition, and therefore impact the composition of forming planets. Classic pe…
View article: PEACHES. IV. Tracing the Formation and Evolution of C<sub>2</sub>H in Perseus Low-mass Protostars
PEACHES. IV. Tracing the Formation and Evolution of C<sub>2</sub>H in Perseus Low-mass Protostars Open
The radical hydrocarbon molecule C 2 H is widely detected in various stages of star and planet formation, and has emerged as a useful tracer of high-C/O gas within the photochemically active surface layers of mature (Class II) protoplaneta…
View article: Soft x-ray spectroscopy of ammonium sulfate aerosols at varied pH conditions
Soft x-ray spectroscopy of ammonium sulfate aerosols at varied pH conditions Open
Aqueous aerosols are useful model systems for understanding the physical chemistry that takes place in the Earth’s atmosphere, as well as the chemistry of other solar system objects. Ammonium sulfate aerosols are impacted by anthropogenic …
View article: On Linking Planet Formation Models, Protoplanetary Disk Properties, and Mature Gas Giant Exoplanet Atmospheres
On Linking Planet Formation Models, Protoplanetary Disk Properties, and Mature Gas Giant Exoplanet Atmospheres Open
Measuring a single elemental ratio (e.g., carbon-to-oxygen) provides insufficient information for understanding the formation mechanisms and evolution that affect our observations of gas giant planet atmospheres. Although the fields of pla…
View article: Refractory phosphorus in the HD 100546 protoplanetary disc
Refractory phosphorus in the HD 100546 protoplanetary disc Open
The phosphorus budget of planets is intertwined with their formation history and is thought to influence their habitability. The chemical reservoirs and volatile versus refractory budget of phosphorus in planet-forming environments have so…
View article: First Detections of PN, PO, and PO<sup>+</sup> toward a Shocked Low-mass Starless Core
First Detections of PN, PO, and PO<sup>+</sup> toward a Shocked Low-mass Starless Core Open
Phosphorus is a key element that plays an essential role in biological processes important for living organisms on Earth. The origin and connection of phosphorus-bearing molecules to early solar system objects and star-forming molecular cl…
View article: A Deep Search for Complex Organic Molecules toward the Protoplanetary Disk of V883 Ori
A Deep Search for Complex Organic Molecules toward the Protoplanetary Disk of V883 Ori Open
Complex organic molecules (COMs) in the form of prebiotic molecules are potential building blocks of life. Using Atacama Large Millimeter/submillimeter Array Band 7 observations in spectral scanning mode, we carried out a deep search for C…
View article: H<sub>2</sub>S ice sublimation dynamics
H<sub>2</sub>S ice sublimation dynamics Open
Context . Hydrogen sulfide (H 2 S) is thought to be an important sulfur reservoir in interstellar ices. It serves as a key precursor to complex sulfur-bearing organics, and has been proposed to play a significant role in the origin of life…
View article: Cospatial ice mapping of H2O with CO2 and CO across a molecular cloud with JWST/NIRCam
Cospatial ice mapping of H2O with CO2 and CO across a molecular cloud with JWST/NIRCam Open
View article: Photochemical pathways in astronomical ices: A computational study of singlet oxygen reactions with hydrocarbons
Photochemical pathways in astronomical ices: A computational study of singlet oxygen reactions with hydrocarbons Open
Complex organic molecules are widespread in different areas of the interstellar medium, including cold areas, such as molecular clouds, where chemical reactions occur in ice. Among the observed molecules are oxygen-bearing organic molecule…
View article: Ice inventory towards the protostar Ced 110 IRS4 observed with the James Webb Space Telescope. Results from the Early Release Science Ice Age program
Ice inventory towards the protostar Ced 110 IRS4 observed with the James Webb Space Telescope. Results from the Early Release Science Ice Age program Open
Protostars contain icy ingredients necessary for the formation of potential habitable worlds, therefore, it is crucial to understand their chemical and physical environments. This work is focused on the ice features towards the binary prot…
View article: Single Aperture Large Telescope for Universe Studies: science overview
Single Aperture Large Telescope for Universe Studies: science overview Open
International audience
View article: Ice inventory towards the protostar Ced 110 IRS4 observed with the James Webb Space Telescope. Results from the ERS Ice Age program
Ice inventory towards the protostar Ced 110 IRS4 observed with the James Webb Space Telescope. Results from the ERS Ice Age program Open
This work focuses on the ice features toward the binary protostellar system Ced 110 IRS 4A and 4B, and observed with JWST as part of the Early Release Science Ice Age collaboration. We aim to explore the JWST observations of the binary pro…
View article: Star and planet formation with the Single Aperture Large Telescope for Universe Studies space observatory
Star and planet formation with the Single Aperture Large Telescope for Universe Studies space observatory Open
View article: JWST Ice Band Profiles Reveal Mixed Ice Compositions in the HH 48 NE Disk
JWST Ice Band Profiles Reveal Mixed Ice Compositions in the HH 48 NE Disk Open
Planet formation is strongly influenced by the composition and distribution of volatiles within protoplanetary disks. With JWST, it is now possible to obtain direct observational constraints on disk ices, as recently demonstrated by the de…
View article: Protoplanetary disk chemistry and structure
Protoplanetary disk chemistry and structure Open
Knowledge of the composition of material that will form planets is crucial to understand planetary diversity and the occurrence of potentially habitable planets. Ultimately, it is the chemistry in circumstellar disks that determines the gl…
View article: IR spectra of pure and apolar ice mixtures
IR spectra of pure and apolar ice mixtures Open
This data set corresponds to the publication "JWST ice band profiles reveal mixed ice compositions in the HH 48 NE disk". NASA ADS link Files contain the laboratory-measured IR spectra (wavenumber vs. absorbance) for pure ices and apolar i…
View article: CORINOS. II. JWST-MIRI Detection of Warm Molecular Gas from an Embedded, Disk-bearing Protostar
CORINOS. II. JWST-MIRI Detection of Warm Molecular Gas from an Embedded, Disk-bearing Protostar Open
We present James Webb Space Telescope (JWST) Mid-InfraRed Instrument (MIRI) observations of warm CO and H 2 O gas in emission toward the low-mass protostar IRAS 15398-3359, observed as part of the CORINOS program. The CO is detected via th…
View article: Key Science Goals for the Next Generation Very Large Array (ngVLA): Update from the ngVLA Science Advisory Council (2024)
Key Science Goals for the Next Generation Very Large Array (ngVLA): Update from the ngVLA Science Advisory Council (2024) Open
In 2017, the next generation Very Large Array (ngVLA) Science Advisory Council, together with the international astronomy community, developed a set of five Key Science Goals (KSGs) to inform, prioritize and refine the technical capabiliti…
View article: CORINOS II. JWST-MIRI detection of warm molecular gas from an embedded, disk-bearing protostar
CORINOS II. JWST-MIRI detection of warm molecular gas from an embedded, disk-bearing protostar Open
We present James Webb Space Telescope (JWST) Mid-InfraRed Instrument (MIRI) observations of warm CO and H$_2$O gas in emission toward the low-mass protostar IRAS 15398-3359, observed as part of the CORINOS program. The CO is detected via t…
View article: Star and Planet Formation with the Single Aperture Large Telescope for Universe Studies (SALTUS) Space Observatory
Star and Planet Formation with the Single Aperture Large Telescope for Universe Studies (SALTUS) Space Observatory Open
The Single Aperture Large Telescope for Universe Studies (SALTUS) is a far-infrared space mission concept with unprecedented spatial and spectral resolution. Saltus consists of a 14-m inflatable primary, providing 16 times the sensitivity …
View article: A JWST/MIRI analysis of the ice distribution and PAH emission in the protoplanetary disk HH 48 NE
A JWST/MIRI analysis of the ice distribution and PAH emission in the protoplanetary disk HH 48 NE Open
Ice-coated dust grains provide the main reservoir of volatiles that play an important role in planet formation processes and may become incorporated into planetary atmospheres. However, due to observational challenges, the ice abundance di…
View article: Detection of the elusive dangling OH ice features at ~2.7 μm in Chamaeleon I with JWST NIRCam
Detection of the elusive dangling OH ice features at ~2.7 μm in Chamaeleon I with JWST NIRCam Open
View article: Single Aperture Large Telescope for Universe Studies (SALTUS): Science Overview
Single Aperture Large Telescope for Universe Studies (SALTUS): Science Overview Open
The SALTUS Probe mission will provide a powerful far-infrared (far-IR) pointed space observatory to explore our cosmic origins and the possibility of life elsewhere. The observatory employs an innovative deployable 14-m aperture, with a su…
View article: Singlet Oxygen Insertion into Hydrocarbons: The Role of First- and Second-Generation Pathways in Astronomically Relevant Ices
Singlet Oxygen Insertion into Hydrocarbons: The Role of First- and Second-Generation Pathways in Astronomically Relevant Ices Open
Complex organic molecules are widespread in different areas of the interstellar medium, including cold areas such as molecular clouds where chemical reactions occur in ice. The underlying molecular mechanisms responsible for the observed r…
View article: A Constrained Dust Opacity for Models of Dense Clouds and Protostellar Envelopes
A Constrained Dust Opacity for Models of Dense Clouds and Protostellar Envelopes Open
Radiative transfer models of dense clouds and protostellar envelopes rely on the availability of appropriate dust opacities, particularly as new JWST data become available. We present the model opacity known as KP5 , which fits the (1–1000…
View article: JWST-MIRI Spectroscopy of Warm Molecular Emission and Variability in the AS 209 Disk
JWST-MIRI Spectroscopy of Warm Molecular Emission and Variability in the AS 209 Disk Open
We present MIRI Medium-resolution Spectrograph observations of the large, multi-gapped protoplanetary disk around the T Tauri star AS 209. The observations reveal hundreds of water vapor lines from 4.9–25.5 μ m toward the inner ∼1 au in th…
View article: JWST-MIRI Spectroscopy of Warm Molecular Emission and Variability in the AS 209 Disk
JWST-MIRI Spectroscopy of Warm Molecular Emission and Variability in the AS 209 Disk Open
We present MIRI MRS observations of the large, multi-gapped protoplanetary disk around the T-Tauri star AS 209. The observations reveal hundreds of water vapor lines from 4.9 to 25.5 $μ$m towards the inner $\sim1$ au in the disk, including…
View article: Potential Melting of Extrasolar Planets by Tidal Dissipation
Potential Melting of Extrasolar Planets by Tidal Dissipation Open
Tidal heating on Io due to its finite eccentricity was predicted to drive surface volcanic activity, which was subsequently confirmed by the Voyager spacecraft. Although the volcanic activity in Io is more complex, in theory volcanism can …