herschel spire

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The Herschel SPIRE Instrument Dave Clements, Imperial College London Matt Griffin, SPIRE PI, Cardiff University Schloss Braunschardt 19/3/09

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ESA Space Science Talks March 2009. Dave Clements and Matt Griffin: A profile of the Herschel infrared observatory's SPIRE – Far-IR Photometer and Spectrometer.

TRANSCRIPT

Page 1: Herschel Spire

The Herschel SPIRE Instrument

Dave Clements, Imperial College London

Matt Griffin, SPIRE PI, Cardiff University

Schloss Braunschardt

19/3/09

Page 2: Herschel Spire

The SPIRE Instrument | Dave Clements | Herschel | Pag. 2

SPIRE – Far-IR Photometer and Spectrometer

SPIRE consists of two sub-instruments

A three colour far-IR Camera

-Simultaneous images at 250, 350, 500 microns:

first time these wavelengths have been explored

from space

- Also parallel mode with PACS

An imaging spectrometer

-Wavelength range 200-670 microns: first

spectral coverage from sapce

-Simultaneous coverage of full wavelength range

For both sub-instruments detectors at 0.3K,

optics and mechanisms at 2K and 5K

> SPIRE undergoing lab testing

Page 3: Herschel Spire

The SPIRE Instrument | Dave Clements | Herschel | Pag. 2

From cosmology to planet formation

What the Photometer Will do?

Cosmology

Find the missing 50% of energy generation

in the universe

-Galaxies evolve very differently in optical

and far-IR, with many more far-IR bright

objects early on, hiding 50% of energy

generation. SPIRE will find and study them.

Star and Planet Formation

Star and planet formation is inherently dusty

phenomenon

-SPIRE will find and determine properties of

protostars and planetary debris disks > SPIRE’s scientific targets

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SPIRE/PACS

Page 4: Herschel Spire

The SPIRE Instrument | Dave Clements | Herschel | Pag. 2

From cosmology to planet formation

SPIRE Spectrometer: Exploring molecules in

space

Rich and largely unexplored range of

spectral lines in far-IR/submm

-SPIRE Spectrometer will provide our first

chance to study this region

-Look for water and CO lines

-Look for complex organic molecules

-Examine the mineralogy of interplanetary

and intersteller dust

-Survey instrument so not aimed at

individual known lines so discovery potential

is huge

> SPIRE Spectrometer targets

Page 5: Herschel Spire

Handy fact:

The SPIRE Photometer can detect power of a 100W lightbulb a million km away - or a low energy bulb (20W) on the Moon.

Herschel Blog:

http://herschelmission.wordpress.com/

THANK YOU

Dave [email protected]