Outputs (52)

Testing the Interaction between a Substellar Companion and a Debris Disk in the HR 2562 System (2023)
Journal Article
Zhang, S. Y., Duchêne, G., De Rosa, R. J., Ansdell, M., Konopacky, Q., Esposito, T., …Wiktorowicz, S. J. (2023). Testing the Interaction between a Substellar Companion and a Debris Disk in the HR 2562 System. Astronomical Journal, 165(5), Article 219. https://doi.org/10.3847/1538-3881/acbafb

The HR 2562 system is a rare case where a brown dwarf companion resides in a cleared inner hole of a debris disk, offering invaluable opportunities to study the dynamical interaction between a substellar companion and a dusty disk. We present the fir... Read More about Testing the Interaction between a Substellar Companion and a Debris Disk in the HR 2562 System.

Introducing the FLAMINGOS-2 Split-K Medium-band Filters: The Impact on Photometric Selection of High-z Galaxies in the FENIKS-pilot survey (2021)
Journal Article
Esdaile, J., Labbé, I., Glazebrook, K., Antwi-Danso, J., Papovich, C., Taylor, E., Marsan, Z. C., Muzzin, A., Straatman, C. M., Marchesini, D., Diaz, R., Spitler, L., Tran, K.-V. H., & Goodsell, S. (2021). Introducing the FLAMINGOS-2 Split-K Medium-band Filters: The Impact on Photometric Selection of High-z Galaxies in the FENIKS-pilot survey. Astronomical Journal, 162(6), Article 225. https://doi.org/10.3847/1538-3881/ac2148

Deep near-infrared photometric surveys are efficient in identifying high-redshift galaxies, however, they can be prone to systematic errors in photometric redshift. This is particularly salient when there is limited sampling of key spectral features... Read More about Introducing the FLAMINGOS-2 Split-K Medium-band Filters: The Impact on Photometric Selection of High-z Galaxies in the FENIKS-pilot survey.

Multiband Polarimetric Imaging of HR 4796A with the Gemini Planet Imager (2020)
Journal Article
Arriaga, P., Fitzgerald, M. P., Duchêne, G., Kalas, P., Millar-Blanchaer, M. A., Perrin, M. D., Chen, C. H., Mazoyer, J., Ammons, M., Bailey, V. P., Barman, T. S., Bulger, J., Chilcote, J. K., Cotten, T., De Rosa, R. J., Doyon, R., Esposito, T. M., Follette, K. B., Gerard, B. L., Goodsell, S., …Wolff, S. G. (2020). Multiband Polarimetric Imaging of HR 4796A with the Gemini Planet Imager. Astronomical Journal, 160(2), Article 79. https://doi.org/10.3847/1538-3881/ab91b1

HR4796A hosts a well-studied debris disk with a long history due to its high fractional luminosity and favorable inclination, which facilitate both unresolved and resolved observations. We present new J- and K 1-band images of the resolved debris dis... Read More about Multiband Polarimetric Imaging of HR 4796A with the Gemini Planet Imager.

RAMSES II: RAMan Search for Extragalactic Symbiotic Stars Project Concept, Commissioning, and Early Results from the Science Verification Phase (2019)
Journal Article
Angeloni, R., Gonçalves, D. R., Akras, S., Gimeno, G., Diaz, R., Scharwächter, J., Nuñez, N. E., Luna, G. J. M., Lee, H.-W., Heo, J.-E., Lucy, A. B., Arancibia, M. J., Moreno, C., Chirre, E., Goodsell, S. J., King, P. S., Sokoloski, J. L., Choi, B.-E., & Ribeiro, M. D. (2019). RAMSES II: RAMan Search for Extragalactic Symbiotic Stars Project Concept, Commissioning, and Early Results from the Science Verification Phase. Astronomical Journal, 157(4), Article 156. https://doi.org/10.3847/1538-3881/ab0cf7

Symbiotic stars (SySts) are long-period interacting binaries composed of a hot compact star, an evolved giant star, and a tangled network of gas and dust nebulae. They represent unique laboratories for studying a variety of important astrophysical pr... Read More about RAMSES II: RAMan Search for Extragalactic Symbiotic Stars Project Concept, Commissioning, and Early Results from the Science Verification Phase.

Complex Spiral Structure in the HD 100546 Transitional Disk as Revealed by GPI and MagAO (2017)
Journal Article
Follette, K. B., Rameau, J., Dong, R., Pueyo, L., Close, L. M., Duchêne, G., …Wolff, S. (2017). Complex Spiral Structure in the HD 100546 Transitional Disk as Revealed by GPI and MagAO. Astronomical Journal, 153(6), Article 264. https://doi.org/10.3847/1538-3881/aa6d85

We present optical and near-infrared high-contrast images of the transitional disk HD 100546 taken with the Magellan Adaptive Optics system (MagAO) and the Gemini Planet Imager (GPI). GPI data include both polarized intensity and total intensity imag... Read More about Complex Spiral Structure in the HD 100546 Transitional Disk as Revealed by GPI and MagAO.

An Optical/Near-infrared Investigation of HD 100546 b with the Gemini Planet Imager and MagAO (2017)
Journal Article
Rameau, J., Follette, K. B., Pueyo, L., Marois, C., Macintosh, B., Millar-Blanchaer, M., …Wiktorowicz, S. (2017). An Optical/Near-infrared Investigation of HD 100546 b with the Gemini Planet Imager and MagAO. Astronomical Journal, 153(6), Article 244. https://doi.org/10.3847/1538-3881/aa6cae

We present H band spectroscopic and Hα photometric observations of HD 100546 obtained with the Gemini Planet Imager and the Magellan Visible AO camera. We detect H band emission at the location of the protoplanet HD 100546 b, but show that the choice... Read More about An Optical/Near-infrared Investigation of HD 100546 b with the Gemini Planet Imager and MagAO.

Integral Field Spectroscopy of the Low-mass Companion HD 984 B with the Gemini Planet Imager (2017)
Journal Article
Johnson-Groh, M., Marois, C., De Rosa, R. J., Nielsen, E. L., Rameau, J., Blunt, S., …Wolff, S. G. (2017). Integral Field Spectroscopy of the Low-mass Companion HD 984 B with the Gemini Planet Imager. Astronomical Journal, 153(4), Article 190. https://doi.org/10.3847/1538-3881/aa6480

We present new observations of the low-mass companion to HD 984 taken with the Gemini Planet Imager as a part of the Gemini Planet Imager Exoplanet Survey campaign. Images of HD 984 B were obtained in the J (1.12--1.3 micron) and H (1.50--1.80 micron... Read More about Integral Field Spectroscopy of the Low-mass Companion HD 984 B with the Gemini Planet Imager.

1–2.4 μm Near-IR Spectrum of the Giant Planet β Pictoris b Obtained with the Gemini Planet Imager (2017)
Journal Article
Chilcote, J., Pueyo, L., De Rosa, R. J., Vargas, J., Macintosh, B., Bailey, V. P., …Wolff, S. (2017). 1–2.4 μm Near-IR Spectrum of the Giant Planet β Pictoris b Obtained with the Gemini Planet Imager. Astrophysical Journal, 153(4), Article 182. https://doi.org/10.3847/1538-3881/aa63e9

Using the Gemini Planet Imager located at Gemini South, we measured the near-infrared (1.0–2.4 μm) spectrum of the planetary companion to the nearby, young star β Pictoris. We compare the spectrum obtained with currently published model grids and wit... Read More about 1–2.4 μm Near-IR Spectrum of the Giant Planet β Pictoris b Obtained with the Gemini Planet Imager.

Gemini Instrument Upgrade Program (2016)
Presentation / Conference Contribution
Diaz, R., Goodsell, S., & Kleinman, S. (2016, December). Gemini Instrument Upgrade Program. Presented at Ground-based and Airborne Instrumentation for Astronomy VI

Discovery of a Substellar Companion to the Nearby Debris Disk Host HR 2562 (2016)
Journal Article
Konopacky, Q. M., Rameau, J., Duchêne, G., Filippazzo, J. C., Giorla Godfrey, P. A., Marois, C., …Wolff, S. G. (2016). Discovery of a Substellar Companion to the Nearby Debris Disk Host HR 2562. Astrophysical Journal Letters, 829(1), Article L4. https://doi.org/10.3847/2041-8205/829/1/l4

We present the discovery of a brown dwarf companion to the debris disk host star HR 2562. This object, discovered with the Gemini Planet Imager (GPI), has a projected separation of 20.3±0.3 au (0.618±0.004") from the star. With the high astrometric p... Read More about Discovery of a Substellar Companion to the Nearby Debris Disk Host HR 2562.