dark matter and black holes from ......garcia-bellido & clesse 2017 wyrzykowski+...
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DARK MATTER AND BLACK HOLES FROM MICROLENSING IN
OGLE, GAIA AND LSST
LSST Dark Matter Workshop, KICP Chicago 2019 Aug 6Polish Consortium
Łukasz Wyrzykowski(pron: Woo-cash Vi-zhi-kov-ski)
Warsaw University Astronomical Observatory, Poland LCO (Goleta, CA) September - December 2019
withKatarzyna Kruszyńska, Kris A. Rybicki
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Łukasz Wyrzykowski2.Dec.2018
dark matter?
mass-gap?
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Łukasz Wyrzykowski
HOW TO FIND DARK MATTER?Massive Astrophysical Compact Halo Objects
adopted from figure by M.Moniez
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Łukasz Wyrzykowski
MICROLENSING
anim
atio
ns b
y S.
Gau
di
photometry (sum of images) astrometry (centroid motion)
~1 month ~1mashttp://www.astronomy.ohio-state.edu/~gaudi/movies.html
= strong lensing in an unresolved regime
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Polish 1.3m dedicated telescope in Las Campanas, Chile Surveying continuously since 1992.
http://ogle.astrouw.edu.pl
HOW TO FIND BLACK HOLES?
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Gaia Science Alerts
Polish 1.3m dedicated telescope in Las Campanas, Chile Surveying continuously since 1992.
ESA space mission with 2x1.4m telescopes located in L2.In operation since 2014. Extended until 2020+DR1 in Sepember 2016, DR2 in April 2018
http://ogle.astrouw.edu.pl
http://gsaweb.ast.cam.ac.uk/alerts
HOW TO FIND BLACK HOLES?
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Łukasz Wyrzykowski
EROS
OGLEMicrolensing
MICROLENSING CONSTRAINS ON HALO DARK MATTER
Wyrzykowski+ 2009,2010,2011a,2011bGarcia-Bellido & Clesse 2017
OGLE data (1996-2009) ruled out PBH M<1 MSun
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Łukasz Wyrzykowski
MICROLENSING CONSTRAINS ON HALO DARK MATTER
Wyrzykowski+ 2009,2010,2011a,2011bGarcia-Bellido & Clesse 2017
EROS
OGLEMicrolensing
The only window for Primordial Black Holes coincides withthe GW black holes!
OGLE data (1996-2009) ruled out PBH M<1 MSun
GW
Bla
ck H
oles
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BLACK HOLES AS LENSES IN THE DISK
𝛳E
Source motion 𝜇rel
MBH = 10 M☉ at ~kpc —> 𝛳E=~5mas, 𝜇rel = 5mas/yr —> tE > 1 yrs
Lu+2019 arxiv:1904.01771 Wiktorowicz, LW+2019 arxiv: 1907.11431
BHs only
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Łukasz Wyrzykowski
PAR-07 (Notec) PAR-03 (Warta) PAR-02 (Odra)
4.5±1.8 M⊙ 1.7±1.0 M⊙ 11.9±5.2 M⊙
DARK LENS CANDIDATES IN THE MILKY WAY
WARNING: Photometry-only leaves mass-distance degenracy
Wyrzykowski+2016, Wyrzykowski&Mandel 2019
OGLE-III 2001-2009 Bulge 150 million stars
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Łukasz Wyrzykowski
HOW TO RECOGNISE A BLACK HOLE LENS?example: OGLE3-ULENS-PAR-02 ~11MSun BH candidate
simulated Gaia astrometryOGLE photometry and parallax model
Rybicki+2018
Photometry + astrometry = mass, distance, luminosity
Wyrzykowski+2016
Gaia will provide <1mas astrometric time-series for events brighter than G=16mag
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Łukasz Wyrzykowski
MICROLENSING EVENTS FROM GAIAsince 2016
K.Kruszynska background: Gaia DR2 (ESA)
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Gaia Science Alerts
HOW TO FIND BLACK HOLES?alerts about
on-going microlensing events
astrometric time-series (Gaia DR4)
follow-up
light curves (~20 telescopes) spectra (VLT, Gemini, SALT) space observations (Spitzer)
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GAIA DARK LENSES: GAIA18BMT
Rybicki+in prep.
photometry: Gaia, ground (LCO), Spitzer
0 1 2 3 4 5 6 7 8
lens distance [kpc]
0.1
1.0
10.0
lens
mas
s[M
�]
-5
-4
-3
-2
log
prob
dens
ity
15 16 17 18 19 20 21 22
lens light [mag]
15
16
17
18
19
20
21
22
blen
dlig
ht[m
ag]
remnant
MS star
-5
-4
-3
-2
log
prob
dens
ity
VLT
~7kpc2.2kpc
K5 giant0.6 MSun (WD? NS?)
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Łukasz Wyrzykowski
GAIA DARK LENSES: GAIA19BLDphotometry: Gaia, ground (LCO), Spitzer
Rybicki+in prep.~3kpc
2.6kpc
K3 supergiant0.9 MSun (WD? NS?)
finite source effect gives thetaE-> M-D degeneracy broken!
VLT
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Street+2018, arxiv:1812.03127
LSST will detect 10000s of microlensing events yielding 100s of BHs
https://arxiv.org/pdf/1806.06372.pdf
Sajadian,Poleski arXiv:1806.06372
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HOW TO FIND BLACK HOLES WITH LSST?
astrometric time-series
(WFIRST?, JWST? GaiaNIR*)
follow-up
light curves (>2m telescopes) spectra (ESO/VLT, Gemini, SALT)
+ space (WFIRST?)
alerts about on-going
microlensing events
*Hobbs+2019arXiv:1907.12535
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Łukasz Wyrzykowski
SUMMARY •Microlensing can discover low and high mass black holes,
including the primordial ones
•Strong limits below <1 MSun for the content of the Milky Way Halo
•OGLE Black holes in the Galactic Disk may fill the Mass-Gap
•Gaia astrometry necessary for accurate lens masses of currently on-going microlensing events, but only for bright rare events
•Individual dark Gaia events from the Galactic Disk will have lens masses measured
•LSST: 100s of lensing BHs!
•JWST, WFIRST, GaiaNIR, ELT - high astrometric precision (2020s)
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Łukasz Wyrzykowski
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Łukasz Wyrzykowski
Microlensing
| Lukasz Wyrzykowski | Warsaw