XMM-Newton: Status Of The Project - PowerPoint PPT Presentation

1 / 36
About This Presentation
Title:

XMM-Newton: Status Of The Project

Description:

XMMNewton: Status Of The Project – PowerPoint PPT presentation

Number of Views:63
Avg rating:3.0/5.0
Slides: 37
Provided by: FredJ
Category:
Tags: xmm | cub | newton | project | status

less

Transcript and Presenter's Notes

Title: XMM-Newton: Status Of The Project


1
XMM-Newton Status Of The Project
  • Talk for the The X-ray Universe 2008 symposium
  • 27th to 30th of May 2008, Granada, Spain
  • Norbert Schartel
  • (XMM-Newton Project Scientist)

2
Contents
  • Status of spacecraft, its instruments and
    calibration
  • Status of the observing program
  • XMM-Newton users, oversubscription and requests
  • Scientific highlights
  • Publications and citations
  • Public outreach
  • Conferences and their proceedings
  • Next Call for observing time new chances
  • Conclusions performance key points

3
Status of the Spacecraft
  • Spacecraft status is very good
  • In May 2007 Mission Extended Operations Review
    concluded that XMM-Newton can operate at least up
    to 2018
  • All systems are running on their primary unit,
    i.e. full redundancy still available
  • At end of 2008 April, 87 kg of fuel remain with
    usage of around 6 kg per year
  • The solar array is generating around 1950 W and
    between 800-1200 W are used.
  • All other consumable are fine, too
  • On November 2007, the SPC approved operations
    until end of 2012. Further extensions will be
    reviewed in 2 years time

4
Status of the Optical Monitor
  • primary components in use, i.e. full redundancy
    still available
  • Sensitivity loss in 2015
  • U, B, V 20
  • UV 20 40

5
Status of the Reflection Grating Spectrometers
  • 2 CCDs were lost early in the mission (full
    wavelength coverage due to redundancy between
    RGS1 and RGS2)
  • RGS 2 single readout mode since August 2007 to
    avoid ADC errors (no impacts for large majority
    of sources)
  • Reduction in EPIC MOS and RGS operating T in 2002
    resulted in far fewer hot pixels

6
Status of the Reflection Grating Spectrometers
7
Status of the EPIC Cameras
  • The Nov 2002 reduction in EPIC MOS (and RGS)
    operating T resulted in far fewer hot pixels, and
    decreased energy resolution degradation rates.
  • 4 micrometeoroid impact events in 7 yrs have
    resulted in the loss of 1 in 14 of the MOS CCDs
    a 5 reduction in the EPIC area.
  • No effects of contamination visible

8
Status of the EPIC Cameras
CAMERA FWHM _at_ MN AFTER LAUNCH FWHM _at_ MN AFTER COOLING FWHM _at_ MN IN 2015 FWHM _at_ AL AFTER LAUNCH FWHM _at_ AL AFTER COOLING FWHM _at_ AL IN 2015
MOS1 135 140 156 75 75 86
MOS2 135 135 148 77 77 82
pn 155 NA 185 120 NA 141
9
Calibration
Representative examples 1H1219301
Line rich source 1ES0102-7219
10
Calibration
XMM-Newton versus Suzaku
XMM-Newton vs. Chandra ACIS/LETG
11
Status of the Observing Program
  • Statistics up to REV 1532 (5.5.2007)?
  • A1 to A5 Program and GT
    finished
  • Open Time Program A6
  • Number of allocated targets (A and B)
    413
  • Allocated cumulative exposure time
    12910 ks
  • Number of successfully observed targets
    401 (97.1)?
  • Successfully observed cumulative exposure time
    12591 ks (97.5)?
  • AO7 started on May 1, 2008
  • Statistics of C-priority observations
  • AO3 observed cumulative exposure time
    1200 ks ( 9.2 )?
  • AO4 observed cumulative exposure time
    1367 ks (31.0)?
  • AO5 observed cumulative exposure time
    2232 ks (26.5)
  • AO6 observed cumulative exposure time
    2459 ks (31.8)

12
Users
  • Observatory type mission
  • Annual call for observing time proposals
  • Peer review process (OTAC)
  • Support for users from definition of observation
    details, enhancement, scheduling/coordination,
    TOO request evaluation and TOO implementation
    help-desk, analysisto (SAS) calibration
    archiving SAS workshops, documentation,
    conferences and public outreach
  • Users
  • Large Community 1500 - 2000 scientists
  • All scientific topics are addressed
  • from comets and planets up to the most distant
    quasars
  • Most of the users are external to the
    XMM-Newton project, e.g. they do not belong to
    instrument institutes nor the Survey Science
    Center)

13
Requests and Users
  • Announcement of Opportunity AO7
  • 586 valid proposals were submitted
  • Oversubscription 7.8
  • 424 different principal investigators from 23
    countries
  • 1560 individual scientists
  • 8 proposals joint XMM/Chandra
  • 11 proposals joint XMM/VLT
  • Observing Time Allocation Committee OTAC
  • 13 panels
  • 66 scientists (rotation every 2 AOs)
  • Archive XSA
  • 2400 external registered uses
  • 110 external users per month (typical value)
  • 2500 data sets (ODF and PPS) per month (typical
    value)
  • Analysis Software SAS
  • Version 7.1 (from July 2007)
  • 1240 downloads
  • 2200 scientists have access to SAS 7.1

14
XMM-Newton Extended Survey Of The Taurus
Molecular Cloud
  • Taurus molecular cloud is the nearest star
    formation region
  • Detection of almost all young stars embedded in
    the cloud as X-ray sources, including many brown
    dwarfs and protostars
  • Identification of unusual physical processes not
    known before in forming stars
  • Gas streams falling down onto the forming and
    young star
  • Ejection of jets
  • AA special feature 15 papers, 2007,
    AA 468 Guedel et al., 2007, AA 468,
    353

15
Million-Degree Plasma Pervading the Extended
Orion Nebula
  • The Orion nebula is illuminated by a small group
    of massive stars (the Trapezium).
  • ? XMM-Newton observations reveal a hot plasma
    with a temperature of 1.7-2.1 106 K pervading the
    southwest extension of the Orion nebula.
  • ? The plasma flows into the adjacent interstellar
    medium.
  • ? This X-ray outflow phenomenon must be
    widespread throughout our Galaxy.
  • M. Guedel et al., 2008, Science 319, 309

16
New Class Of Type 1 SN
  • DEM L238 DEM L249
  • Thermal spectrum dominated by Fe L-shell lines
  • Fe over-abundance ? Thermo-nuclear Type Ia
    explosions
  • K.J. Borkowski et al. 2007, ApJ 652, 1259
  • Explosions with energies of 3 1050 ergs
  • New class of SN Ia, more massive and young (100
    Myr old) progenitors

17
Broad Relativistic Iron Line From Serpens X-1
  • Neutron star low-mass X-ray binary (LMXB) Serpens
    X-1
  • Previously known broad iron Ka emission line
  • Asymmetric shape of the line supports an inner
    accretion disk origin
  • ? First strong evidence of a relativistic line in
    a neutron star LMX
  • Bhattacharyya Strohmayer, 2007, ApJ 664, L103

18
First Black Hole In Globular Star Clusters
  • GCs contain 103-106 old stars packed within tens
    of light years
  • Formation of 103 solar mass BH ?
  • Interaction will eject BHs ?
  • T.J. Maccarone et al., 2007, Nature 445, 183

NGC 4472
  • X-ray source in GC associated with NGC 4472 (in
    the Virgo cluster)
  • X-ray luminosity 4x1039 erg s-1
  • Variability excludes composition by several
    objects
  • ? Black hole (15-30 or 400 solar masses)

19
Compact, Conical, Accretion-Disk Warm Absorber Of
The Seyfert 1 Galaxy NGC4051
  • Absorber consists of two different ionization
    components, with a difference of 100 in
    ionization parameter and 5 in column density
  • Distances 0.5-1.0 lt-days (2200RS-4400RS) and
    lt3.5 lt-days (lt15,800 RS) from the continuum
    source
  • Suggests strongly accretion-disk origin for the
    warm absorber wind
  • ? Mass outflow rate from wind is 2-5 of the
    mass accretion rate
  • Krongold et al., 2007, ApJ 659, 1022

20
Origin Of Elements In Galaxy Clusters
  • Sersic 159-03 2A 0335096

N. Werner, et al. , 2006, AA 446, 475 J. de
Plaa, et al. 2006, AA 452, 397 2007, AA 465,
345
  • Abundances ?
  • 30 of the supernovae in these clusters were
    exploding white dwarfs (Type Ia)
  • 70 were collapsing stars at the end of their
    lives (core collapse)

21
XMMXCS J2215.9-1738
  • Massive galaxy cluster at z1.45
  • The redshift of XMMXCS J2215.9-1738 is the
    highest currently known for a spectroscopically
    confirmed cluster of galaxies
  • Stanford et al., 2006 ApJ 646, L13

22
Dark Matter Maps Reveal Cosmic Scaffolding
COSMOS Field 1.637 degree2 1000 h (HST)
400 h (XMM)
Matter 1/6 baryonic
(hot and cold) 5/6 dark
Gravitational lensing total amount of matter
(hot and cold) Optical infrared cold baryonic
matter
  • Maps of the large-scale distribution of dark
    matter, resolved in both angle and depth.
  • Loose network of filaments, growing over time,
    which intersect in massive structures at the
    locations of clusters of galaxies
  • Consistent with predictions of gravitationally
    induced structure formation

R. Massey et al., 2007, Nature 445, 286
XMM-Newton hot matter (red in picture)
23
Detection of hot gas in the filament connecting
two clusters of galaxies
  • about 50 of the baryons in the local Universe
    are expected to resides in filaments connecting
    clusters of galaxies in form of low density gas
    with temperatures of 105ltTlt107 K.
  • filament connecting the clusters of galaxies A
    222 and A 223 (z 0.21) has been previously
    detected using weak lensing data
  • ?detection of the filament in the soft-band
    X-rays with a 5s with . kT
    0.91 0.25 keV
  • ?baryon over-density of ?/lt?Cgt 150, which is
    consistent with expectations . for the densest
    and hottest parts of the warm-hot intergalactic
    medium
  • . Werner et al., 2008, AA 482, 29

24
XMM-Newton Serendipitous Source Catalogue 2XMM
  • 246897 source detections corresponding to 191870
    unique sources
  • 360 square degrees
  • Source products spectra, light curves
  • Well-defined samples of various object types
    AGN, clusters of galaxies, interacting compact
    binaries, active stellar coronae
  • Largest X-ray source catalogue ever produced
  • Released in August 2007
  • M. Watson et al. 2008, in preparation

25
Publications
2007 330 publications 2008 (May) 115 in
refereed journals directly based on XMM-Newton
data
26
Citations
31.4 citations / paper
27
Public Outreach 2007
28
Public Outreach 2007
29
Public Outreach 2007
http//xmm.esac.esa.int/external/xmm_news/latest_n
ews.shtml
30
Public Outreach 2008
http//xmm.esac.esa.int/external/xmm_news/
latest_news.shtml
31
Conferences and
32
and their Proceedings
33
Next Call of Proposals AO8
  • Planned key milestones
  • Announcement 26 August 2008
  • Due date for proposals 10 October 2008 (1200
    UT)?
  • Final approved program late December 2008
  • Second phase submission 12 January 6 February
    2009
  • Start of observations May 2009
  • 6 Scientific categories / 13 Panels in total / 66
    scientists
  • OTAC chairpersons selected
  • Panel member search underway

34
AO8 New Modes
  • New Mosaic mode for observation of large areas
    with short exposure time
  • Since AO7 pn modified timing for observation of
    very bright sources
  • Since AO7 RGS multi-pointing mode for very
    homogenously exposed spectra

courtesy of Pedro Rodríguez-Pascual
35
AO8 Large and Very Large Programs
courtesy of Pedro Rodríguez-Pascual
  • Very Large Programs can ask for observations to
    be performed over two AOs with observation of up
    to 1.5 Ms in the following AO
  • Maximum size of Very Large Programs will be
    defined reflecting the total time available for
    Large and Very Large Programs as well as the
    actual visibility of the proposed target

36
Conclusion Performance Key Points
  • XMM-Newton is unique at
  • Large field of view (d30)
  • Large collecting area (gt2000 cm2 for all EPIC)
  • Largest collecting area at 6.4 keV
  • High time resolution
  • High spectral resolution (RGS, best for extended
    sources)
  • Long observations (130 ks)
  • XMM-Newton can operate at least up to 2018
  • ? No other telescope with similar or better
    overall performances available for the next 10
    years or more
Write a Comment
User Comments (0)
About PowerShow.com