Dr. Francisca Kemper Profile

Dr. Francisca Kemper

ICREA Research Professor at Institut de Ciències de l'Espai (ICE-CSIC)

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Publications (4)

Proceedings Article | 2 September 2022 Presentation + Paper

ALMA Band-1 (35-50GHz) receiver: first light, performance, and road to completion

Yau-De Huang, Yuh-Jing Hwang, Chau-Ching Chiong, Hsi-Wei Yen, Patrick Michel Koch, Chi-Den Huang, Bill Liu, Cheng Lin Chen, Jwu Jiun Tsai, Wei-Ling Hsiung, Li-Pin Chi, Chin-Ting Ho, Chao-Chin Wang, Chen Chien, You-Hua Chu, Paul Ho, Francisca Kemper, Oscar Morata, Alvaro Gonzalez, Satoru Iguchi, Yoshi Uzawa, Daisuke Iono, Hiroshi Nagai, John Effland, Kamaljeet Saini, Marian Pospieszalski, Doug Henke, Keith Yeung, Ricardo Finger, Valeria Tapia, Nicolas Reyes, Giorgio Siringo, Gianni Marconi, Rodrigo Cabezas

Proceedings Volume 12190, 121900K (2022) https://doi.org/10.1117/12.2629766

KEYWORDS: Receivers, Optical amplifiers, Radio astronomy, Antennas, Astronomy, Observatories, Cryogenics, Simulation of CCA and DLA aggregates, Roads, Galactic astronomy

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Proceedings Article | 10 July 2018 Presentation

SPICA: a joint infrared space observatory (Conference Presentation)

Peter Roelfsema, Hiroshi Shibai, Kees Wafelbakker, Gert de Lange, Martin Giard, Francisco Najarro, Marc Audard, Lee Armus, Charles Bradford, Yasuo Doi, Matt Griffin, Frank Helmich, Inga Kamp, Hidehiro Kaneda, Ciska Kemper, Franz Kerschbaum, Kotaro Kohno, Oliver Krause, Bengt Larsson, Sue Madden, Hideo Matsuhara, Takao Nakagawa, David Naylor, Hiroyuki Ogawa, Takashi Onaka, Luigi Spinoglio, Floris van der Tak, Bart Vandenbussche, Toru Yamada

Proceedings Volume 10698, 106980A (2018) https://doi.org/10.1117/12.2313124

KEYWORDS: Space telescopes, Telescopes, Infrared Space Observatory, Planetary systems, Infrared radiation, Infrared telescopes, Galaxy evolution, Sensors, Cryogenics, Spectroscopes

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Measurements in the infrared wavelength domain allow us to assess directly the physical state and energy balance of cool matter in space, thus enabling the detailed study of the various processes that govern the formation and early evolution of stars and planetary systems in the Milky Way and of galaxies over cosmic time. Previous infrared missions, from IRAS to Herschel, have revealed a great deal about the obscured Universe, but sensitivity has been limited because up to now it has not been possible to fly a telescope that is both large and cold. Such a facility is essential to address key astrophysical questions, especially concerning galaxy evolution and the development of planetary systems. SPICA is a mission concept aimed at taking the next step in mid- and far-infrared observational capability by combining a large and cold telescope with instruments employing state-of-the-art ultra-sensitive detectors. The mission concept foresees a 2.5-meter diameter telescope cooled to below 8 K. Rather than using liquid cryogen, a combination of passive cooling and mechanical coolers will be used to cool both the telescope and the instruments. With cooling not dependent on a limited cryogen supply, the mission lifetime can extend significantly beyond the required three years. The combination of low telescope background and instruments with state-of-the-art detectors means that SPICA can provide a huge advance on the capabilities of previous missions. The SPICA instrument complement offers spectral resolving power ranging from ~50 through 11000 in the 17-230 µm domain as well as ~28.000 spectroscopy between 12 and 18 µm. Additionally, SPICA will be capable of efficient 30-37 µm broad band mapping, and small field spectroscopic and polarimetric imaging in the 100-350 µm range. SPICA will enable far infrared spectroscopy with an unprecedented sensitivity of ~5x10-20 W/m2 (5σ/1hr) - at least two orders of magnitude improvement over what has been attained to date. With this exceptional leap in performance, new domains in infrared astronomy will become accessible, allowing us, for example, to unravel definitively galaxy evolution and metal production over cosmic time, to study dust formation and evolution from very early epochs onwards, and to trace the formation history of planetary systems.

Proceedings Article | 9 July 2018 Paper

Performance of pre-production band 1 receiver for the Atacama Large Millimeter/submillimeter Array (ALMA)

Yau-De (Ted) Huang, Oscar Morata, Patrick Michel Koch, Ciska Kemper, Yuh-Jing Hwang, Chau-Ching Chiong, Paul T. Ho, You-Hua Chu, Chi-Den Huang, Ching-Tang Liu, Fang-Chia Hsieh, Yen-Hsiang Tseng, Chia-Hsiang Yang, Jinn jy Tsay, Tsu Chang, Chin-Ting Ho, Po-Han Chiang, Chih-Cheng Chang, Shou-Ting Jian, Sung-Po Hsu, Chen Chien, Satoru Iguchi, Shin'ichiro Asayama, Daisuke Iono, Alvaro Gonzalez, John Effland, Kamaljeet Saini, Marian Pospieszalski, Doug Henke, Keith Yeung, Ricardo Finger, Valeria Tapia, Nicolas Reyes

Proceedings Volume 10708, 1070833 (2018) https://doi.org/10.1117/12.2310127

KEYWORDS: Receivers, Radio astronomy, Astronomy

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Proceedings Article | 10 August 2016 Paper

The Atacama Large Millimeter/sub-millimeter Array band-1 receiver

Yau De (Ted) Huang, Oscar Morata, Patrick Michel Koch, Ciska Kemper, Yuh-Jing Hwang, Chau-Ching Chiong, Paul Ho, You-Hua Chu, Chi-Den Huang, Ching-Tang Liu, Fang-Chia Hsieh, Yen-Hsiang Tseng, Shou-Hsien Weng, Chin-Ting Ho, Po-Han Chiang, Hsiao-Ling Wu, Chih-Cheng Chang, Shou-Ting Jian, Chien-Feng Lee, Yi-Wei Lee, Satoru Iguchi, Shin'ichiro Asayama, Daisuke Iono, Alvaro Gonzalez, John Effland, Kamaljeet Saini, Marian Pospieszalski, Doug Henke, Keith Yeung, Ricardo Finger, Valeria Tapia, Nicolas Reyes

Proceedings Volume 9911, 99111V (2016) https://doi.org/10.1117/12.2232193

KEYWORDS: Receivers, Optical amplifiers, Radio astronomy, Prototyping, Astronomy, Galactic astronomy, Optical isolators, Cryogenics, Observatories, Carbon monoxide

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