18 citations · 47 across the 13 of their papers we have counts for
13 papers
JWST/NIRSpec Detects Warm CO Emission in the Terrestrial-Planet Zone of HD 131488
Cicero X. Lu, Isabel Rebollido, Sean Brittain +12
We have obtained a high-resolution, JWST NIRSpec -- m spectrum of the debris disk around HD 131488. We discover CO fundamental emission indicating the presence of…
Probing the era of giant collisions: millimeter observations of the HD 166191 system
Kadin Worthen, Christine H. Chen, A. Meredith Hughes +5
We present non-simultaneous ALMA band 7 and SMA observations of the HD 166191 disk, which was recently thought to have a collision in its terrestrial planet zone. Both observations…
High CO/H2 ratios supports an exocometary origin for a CO-rich debris disk
Kevin D. Smith, Luca Matrà, Ke Zhang +9
Over 20 exocometary belts host detectable circumstellar gas, mostly in the form of CO. Two competing theories for its origin have emerged, positing the gas to be primordial or seco…
JWST-TST High Contrast: Medium-resolution spectroscopy reveals a carbon-rich circumplanetary disk around the young accreting exoplanet Delorme 1 AB b
Mathilde Mâlin, Kimberly Ward-Duong, Sierra L. Grant +21
Young accreting planetary-mass objects are thought to draw material from a circumplanetary disk (CPD) composed of gas and dust. While the gas within the disk is expected to dispers…
Water ice in the debris disk around HD 181327
Chen Xie, Christine H. Chen, Carey M. Lisse +13
Debris disks are exoplanetary systems that contain planets, minor bodies (i.e., asteroids, Kuiper belt objects, comets, etc.), and micron-sized debris dust. Since water ice is the…
Sequencing Silicates in the IRS Debris Disk Catalog I: Methodology for Unsupervised Clustering
Cicero X. Lu, Tushar Mittal, Christine H. Chen +10
Debris disks, which consist of dust, planetesimals, planets, and gas, offer a unique window into the mineralogical composition of their parent bodies, especially during the critica…
Triple trouble with PSR J1618-3921: Mass measurements and orbital dynamics of an eccentric millisecond pulsar
K. Grunthal, V. Venkatraman Krishnan, P. C. C. Freire +11
PSR J1618-3921 is one of five known millisecond pulsars (MSPs) in eccentric orbits (eMPSs) located in the Galactic plane, whose formation is poorly understood. Earlier studies of t…
A JWST MIRI MRS View of the Tel Debris Disk and its Brown Dwarf Companion
Yiwei Chai, Christine H. Chen, Kadin Worthen +12
We report JWST MIRI MRS observations of the Pictoris moving group member, Telescopii ( Tel) A and its brown dwarf binary companion, Tel B. Following PSF subtraction,…
MIRI MRS Observations of Beta Pictoris II. The Spectroscopic Case for a Recent Giant Collision
Christine H. Chen, Cicero X. Lu, Kadin Worthen +17
Modeling observations of the archetypal debris disk around Pic, obtained in 2023 January with the MIRI MRS on board JWST, reveals significant differences compared with that obt…
Argon in beta Pictoris -- entrapment and release of volatile in disks
Yanqin Wu, Kadin Worthen, Alexis Brandeker +1
Chemical compositions of planets reveal much about their formation environments. Such information is well sought-after in studies of Solar System bodies and extra-solar ones. Here,…
JWST-TST High Contrast: JWST/NIRCam observations of the young giant planet Pic b
Jens Kammerer, Kellen Lawson, Marshall D. Perrin +14
We present the first JWST/NIRCam observations of the directly-imaged gas giant exoplanet Pic b. Observations in six filters using NIRCam's round coronagraphic masks provide a h…
Sulfur isotope ratios in the Large Magellanic Cloud
Y. Gong, C. Henkel, K. M. Menten +11
Sulfur isotope ratios have emerged as a promising tool for tracing stellar nucleosynthesis, quantifying stellar populations, and investigating the chemical evolution of galaxies. W…
Chandra Characterization of X-ray Emission in the Young F-Star Binary System HD 113766
C. M. Lisse, D. J. Christian, S. J. Wolk +3
Using Chandra we have obtained imaging X-ray spectroscopy of the 10 to 16 Myr old F-star binary HD 113766. We individually resolve the binary components for the first time in the X…