2020年11月5日

埃里克·斯威策, 美国航空航天局/戈达德

“实验用于低温大孔径强度映射(惊叹)”

The EXperiment for Cryogenic Large-Aperture Intensity 地图ping (EXCLAIM) is a cryogenic balloon-borne instrument that will survey galaxy and star formation history over cosmological time scales. Rather than identifying individual objects, EXCLAIM will be a pathfinder to demonstrate an intensity mapping approach, which measures the cumulative redshifted line emission. EXCLAIM will operate at 420-540 GHz with a spectral resolution R=512 to measure the integrated CO and [CII] in redshift windows spanning 0 < z < 3.5. CO and [CII] line emissions are key tracers of the gas phases in the interstellar medium involved in star-formation processes. EXCLAIM will shed light on questions such as why the star formation rate declines at z < 2, despite continued clustering of the dark matter. The instrument will employ an array of six superconducting integrated grating-analog spectrometers (micro-spec) coupled to microwave kinetic inductance detectors (MKIDs). I will present an overview of the EXCLAIM instrument design and status.

zoom网址: //us02web.zoom.us/j/88513896776?pwd=y1jtre1kzllxwkftamjbsgtgdm9yqt09

会议ID:885 1389 6776
密码:713070

活动详情

日期:
2020年11月5日

时间:
3:45-5pm

位置:
在线变焦会议(见摘要)

笔记:
茶在下午3:30开始的谈话在下午3:45

音箱主机:
彼得TIMBE,物理系十大网赌网站麦迪逊分校

十大网赌网站麦迪逊分校的天文学家