Search

Your search keyword '"Rampy P"' showing total 7 results
Start Over Author "Rampy P" Publication Year Range Last 3 years
Sorry, I don't understand your search. ×
7 results on '"Rampy P"'

1. Commissioning results from the Robo-AO-2 facility for rapid visible and near-infrared AO imaging

Author

Baranec, Christoph, Ou, James, Riddle, Reed, Zhang, Ruihan, Mckay, Luke, Rampy, Rachel, Bonnet, Morgan, Hamilton, Iven, Ching, Greg, Young, Jessica, Salama, Maıssa, Barnes, Paul, Jacobson, Shane, Onaka, Peter, Chun, Mark, Werber, Zachary, Powell, Keith, van Dam, Marcos A., and Shappee, Benjamin

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

We installed the next-generation automated laser adaptive optics system, Robo-AO-2, on the University of Hawaii 2.2-m telescope on Maunakea in 2023. We engineered Robo-AO-2 to deliver robotic, diffraction-limited observations at visible and near-infrared wavelengths in unprecedented numbers. This new instrument takes advantage of upgraded components, manufacturing techniques and control; and includes a parallel reconfigurable natural guide star wavefront sensor with which to explore hybrid wavefront sensing techniques. We present the results of commissioning in 2023 and 2024., Comment: Proceedings of SPIE, 13097-15

Published
2024

2. The Spectroscopic Classification of Astronomical Transients (SCAT) Survey: Overview, Pipeline Description, Initial Results, and Future Plans

Author

Tucker, M. A., Shappee, B. J., Huber, M. E., Payne, A. V., Do, A., Hinkle, J. T., de Jaeger, T., Ashall, C., Desai, D. D., Hoogendam, W. B., Aldering, G., Auchettl, K., Baranec, C., Bulger, J., Chambers, K., Chun, M., Hodapp, K. W., Lowe, T. B., McKay, L., Rampy, R., Rubin, D., and Tonry, J. L.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

We present the Spectroscopic Classification of Astronomical Transients (SCAT) survey, which is dedicated to spectrophotometric observations of transient objects such as supernovae and tidal disruption events. SCAT uses the SuperNova Integral-Field Spectrograph (SNIFS) on the University of Hawai'i 2.2-meter (UH2.2m) telescope. SNIFS was designed specifically for accurate transient spectrophotometry, including absolute flux calibration and host-galaxy removal. We describe the data reduction and calibration pipeline including spectral extraction, telluric correction, atmospheric characterization, nightly photometricity, and spectrophotometric precision. We achieve $\lesssim 5\%$ spectrophotometry across the full optical wavelength range ($3500-9000~\r{A}$) under photometric conditions. The inclusion of photometry from the SNIFS multi-filter mosaic imager allows for decent spectrophotometric calibration ($10-20\%$) even under unfavorable weather/atmospheric conditions. SCAT obtained $\approx 640$ spectra of transients over the first 3 years of operations, including supernovae of all types, active galactic nuclei, cataclysmic variables, and rare transients such as superluminous supernovae and tidal disruption events. These observations will provide the community with benchmark spectrophotometry to constrain the next generation of hydrodynamic and radiative transfer models., Comment: 12 pages, 9 figures, 2 tables. Accepted for publication in to PASP

Published
2022
Full Text
View/download PDF

3. The Spectroscopic Classification of Astronomical Transients (SCAT) Survey: Overview, Pipeline Description, Initial Results, and Future Plans

Author

Tucker, MA, Shappee, BJ, Huber, ME, Payne, AV, Do, A, Hinkle, JT, de Jaeger, T, Ashall, C, Desai, DD, Hoogendam, WB, Aldering, G, Auchettl, K, Baranec, C, Bulger, J, Chambers, K, Chun, M, Hodapp, KW, Lowe, TB, McKay, L, Rampy, R, Rubin, D, and Tonry, JL

Subjects
Space Sciences, Physical Sciences, Astronomical and Space Sciences, Astronomy & Astrophysics, Astronomical sciences, Particle and high energy physics
Abstract

Abstract: We present the Spectroscopic Classification of Astronomical Transients (SCAT) survey, which is dedicated to spectrophotometric observations of transient objects such as supernovae and tidal disruption events. SCAT uses the SuperNova Integral-Field Spectrograph (SNIFS) on the University of Hawai’i 2.2 m (UH2.2m) telescope. SNIFS was designed specifically for accurate transient spectrophotometry, including absolute flux calibration and host-galaxy removal. We describe the data reduction and calibration pipeline including spectral extraction, telluric correction, atmospheric characterization, nightly photometricity, and spectrophotometric precision. We achieve ≲5% spectrophotometry across the full optical wavelength range (3500–9000 Å) under photometric conditions. The inclusion of photometry from the SNIFS multi-filter mosaic imager allows for decent spectrophotometric calibration (10%–20%) even under unfavorable weather/atmospheric conditions. SCAT obtained ≈640 spectra of transients over the first 3 yr of operations, including supernovae of all types, active galactic nuclei, cataclysmic variables, and rare transients such as superluminous supernovae and tidal disruption events. These observations will provide the community with benchmark spectrophotometry to constrain the next generation of hydrodynamic and radiative transfer models.

Published
2022

Catalog

Books, media, physical & digital resources
See catalog results