T. Herter
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View article: SOFIA/FORCAST Galactic Center Source Catalog
SOFIA/FORCAST Galactic Center Source Catalog Open
The central regions of the Milky Way constitute a unique laboratory for a wide swath of astrophysical studies; consequently, the inner ∼400 pc have been the target of numerous large surveys at all accessible wavelengths. In this paper, we …
View article: SOFIA/FORCAST Galactic Center Source Catalog
SOFIA/FORCAST Galactic Center Source Catalog Open
The central regions of the Milky Way constitute a unique laboratory for a wide swath of astrophysical studies, consequently the inner $\sim$400 pc has been the target of numerous large surveys at all accessible wavelengths. In this paper w…
View article: CCAT-prime Collaboration: Science Goals and Forecasts with Prime-Cam on the Fred Young Submillimeter Telescope
CCAT-prime Collaboration: Science Goals and Forecasts with Prime-Cam on the Fred Young Submillimeter Telescope Open
We present a detailed overview of the science goals and predictions for the Prime-Cam direct-detection camera–spectrometer being constructed by the CCAT-prime collaboration for dedicated use on the Fred Young Submillimeter Telescope (FYST)…
View article: CCAT-prime: The 850 GHz camera for Prime-Cam on FYST
CCAT-prime: The 850 GHz camera for Prime-Cam on FYST Open
The Fred Young Submillimeter Telescope (FYST) at the Cerro-Chajnantor Atacama Telescope prime (CCAT- prime) Facility will host Prime-Cam as a powerful, first generation camera with imaging polarimeters working at several wavelengths and sp…
View article: CCAT-prime: Design of the Mod-Cam receiver and 280 GHz MKID instrument module
CCAT-prime: Design of the Mod-Cam receiver and 280 GHz MKID instrument module Open
Mod-Cam is a first light and commissioning instrument for the CCAT-prime project's six-meter aperture Fred Young Submillimeter Telescope (FYST), currently under construction at 5600 m on Cerro Chajnantor in Chile's Atacama Desert. Prime-Ca…
View article: CCAT-prime: Characterization of the First 280 GHz MKID Array for\n Prime-Cam
CCAT-prime: Characterization of the First 280 GHz MKID Array for\n Prime-Cam Open
The Prime-Cam receiver on the Fred Young Submillimeter Telescope for the\nCCAT-prime project aims to address important astrophysical and cosmological\nquestions with sensitive broadband, polarimetric, and spectroscopic\nmeasurements. The p…
View article: CCAT-prime Collaboration: Science Goals and Forecasts with Prime-Cam on the Fred Young Submillimeter Telescope
CCAT-prime Collaboration: Science Goals and Forecasts with Prime-Cam on the Fred Young Submillimeter Telescope Open
We present a detailed overview of the science goals and predictions for the Prime-Cam direct detection camera/spectrometer being constructed by the CCAT-prime collaboration for dedicated use on the Fred Young Submillimeter Telescope (FYST)…
View article: LBT Reveals Large Dust Particles and a High Mass-loss Rate for K2-22 b
LBT Reveals Large Dust Particles and a High Mass-loss Rate for K2-22 b Open
The disintegrating planet candidate K2-22 b shows periodic and stochastic transits best explained by an escaping debris cloud. However, the mechanism that creates the debris cloud is unknown. The grain size of the debris as well as its sub…
View article: An Infrared Study of the Circumstellar Material Associated with the Carbon Star R Sculptoris
An Infrared Study of the Circumstellar Material Associated with the Carbon Star R Sculptoris Open
The asymptotic giant branch (AGB) star R Sculptoris (R Scl) is one of the most extensively studied stars on the AGB. R Scl is a carbon star with a massive circumstellar shell ($M_{shell}\sim 7.3\times10^{-3}~M_{\odot}$) which is thought to…
View article: The CCAT-Prime Submillimeter Observatory
The CCAT-Prime Submillimeter Observatory Open
The Cerro Chajnantor Atacama Telescope-prime (CCAT-prime) is a new 6-m, off-axis, low-emissivity, large field-of-view submillimeter telescope scheduled for first light in the last quarter of 2021. In summary, (a) CCAT-prime uniquely combin…
View article: SOFIA/FORCAST Observations of the Sgr A-H H ii Regions: Using Dust Emission to Elucidate the Heating Sources
SOFIA/FORCAST Observations of the Sgr A-H H ii Regions: Using Dust Emission to Elucidate the Heating Sources Open
The Sgr A-H H ii regions are a collection of sources that may represent one of the most recent sites of star formation in the Galactic center (GC). Examining these H ii regions provides important information on the prevalence and distribut…
View article: Astro2020: The Cycling of Matter from the Interstellar Medium to Stars and back
Astro2020: The Cycling of Matter from the Interstellar Medium to Stars and back Open
Understanding the matter cycle in the interstellar medium of galaxies from the assembly of clouds to star formation and stellar feedback remains an important and exciting field in comtemporary astrophysics. Many open questions regarding cl…
View article: "SZ spectroscopy" in the coming decade: Galaxy cluster cosmology and astrophysics in the submillimeter
"SZ spectroscopy" in the coming decade: Galaxy cluster cosmology and astrophysics in the submillimeter Open
Sunyaev-Zeldovich (SZ) effects were first proposed in the 1970s as tools to identify the X-ray emitting hot gas inside massive clusters of galaxies and obtain their velocities relative to the cosmic microwave background (CMB). Yet it is on…
View article: CCAT-prime: Science with an Ultra-widefield Submillimeter Observatory at Cerro Chajnantor
CCAT-prime: Science with an Ultra-widefield Submillimeter Observatory at Cerro Chajnantor Open
We present the detailed science case, and brief descriptions of the telescope design, site, and first light instrument plans for a new ultra-wide field submillimeter observatory, CCAT-prime, that we are constructing at a 5600 m elevation s…
View article: The optical design of the six-meter CCAT-prime and Simons Observatory telescopes
The optical design of the six-meter CCAT-prime and Simons Observatory telescopes Open
A common optical design for a coma-corrected, 6-meter aperture, crossed-Dragone telescope has been adopted for the CCAT-prime telescope of CCAT Observatory, Inc., and for the Large Aperture Telescope of the Simons Observatory. Both are to …
View article: FORCAST: A Mid-Infrared Camera for SOFIA
FORCAST: A Mid-Infrared Camera for SOFIA Open
We describe the Faint Object infraRed CAmera for the SOFIA Telescope (FORCAST) which is presently operating as a facility instrument on the Stratospheric Observatory For Infrared Astronomy (SOFIA). FORCAST provides imaging and moderate res…
View article: The Emission and Distribution of Dust of the Torus of NGC 1068
The Emission and Distribution of Dust of the Torus of NGC 1068 Open
We present observations of NGC 1068 covering the 19.7–53.0 μ m wavelength range using FORCAST and HAWC+ on board SOFIA. Using these observations, high-angular-resolution infrared (IR) and submillimeter observations, we find an observationa…
View article: Spectroscopic characterisation of microlensing events
Spectroscopic characterisation of microlensing events Open
\n The microlensing event OGLE-2011-BLG-0417 is an exceptionally bright lens binary that was predicted to present radial velocity variation at the level of several km s-1. Pioneer radial velocity follow-up observations with the UVES spectr…
View article: Spectroscopic characterisation of microlensing events Towards a new interpretation of OGLE-2011-BLG-0417
Spectroscopic characterisation of microlensing events Towards a new interpretation of OGLE-2011-BLG-0417 Open
The microlensing event OGLE-2011-BLG-0417 is an exceptionally bright lens binary that was predicted to present radial velocity variation at the level of several km/s. Pioneer radial velocity follow-up observations with the UVES spectrograp…
View article: INFRARED OBSERVATIONS OF THE QUINTUPLET PROPER MEMBERS USING SOFIA/FORCAST AND GEMINI/TReCS
INFRARED OBSERVATIONS OF THE QUINTUPLET PROPER MEMBERS USING SOFIA/FORCAST AND GEMINI/TReCS Open
Since their discovery, the Quintuplet proper members (QPMs) have been somewhat mysterious in nature. Originally dubbed the “cocoon stars” due to their cool featureless spectra, high-resolution near-infrared imaging observations have shown …
View article: AN APPARENT PRECESSING HELICAL OUTFLOW FROM A MASSIVE EVOLVED STAR: EVIDENCE FOR BINARY INTERACTION
AN APPARENT PRECESSING HELICAL OUTFLOW FROM A MASSIVE EVOLVED STAR: EVIDENCE FOR BINARY INTERACTION Open
Massive, evolved stars play a crucial role in the metal enrichment, dust budget, and energetics of the interstellar medium; however, the details of their evolution are uncertain because of their rarity and short lifetimes before exploding …
View article: SOFIA/FORCAST OBSERVATIONS OF WARM DUST IN S106: A FRAGMENTED ENVIRONMENT
SOFIA/FORCAST OBSERVATIONS OF WARM DUST IN S106: A FRAGMENTED ENVIRONMENT Open
We present mid-IR (19 - 37 microns) imaging observations of S106 from\nSOFIA/FORCAST, complemented with IR observations from Spitzer/IRAC (3.6 - 8.0\nmicrons), IRTF/MIRLIN (11.3 and 12.5 microns), and Herschel/PACS (70 and 160\nmicrons). W…
View article: SOFIA/FORCAST Observations of Warm Dust in S106: A Fragmented Environment
SOFIA/FORCAST Observations of Warm Dust in S106: A Fragmented Environment Open
We present mid-IR (19 - 37 microns) imaging observations of S106 from SOFIA/FORCAST, complemented with IR observations from Spitzer/IRAC (3.6 - 8.0 microns), IRTF/MIRLIN (11.3 and 12.5 microns), and Herschel/PACS (70 and 160 microns). We u…