federica bianco PRO
astro | data science | data for good
Title Text
University of Delaware
Department of Physics and Astronomy
federica bianco - Associate Professor
(she/her)
Biden School of Public Policy and Administration
Data Science Institute
Title Text
University of Delaware
Department of Physics and Astronomy
Biden School of Public Policy and Administration
Data Science Institute
Rubin Observatory Construction Project - Deputy Project Scientist
Rubin Transients and Variable Stars Science Collaboration
federica bianco - Associate Professor
(she/her)
slides available at
This is a living land acknowledgement developed in consultation with tribal leadership of Poutaxet, what is now known as the “Delaware Bay,” including: the Lenape Indian Tribe of Delaware, the Nanticoke Indian Tribe, and the Nanticoke Lenni-Lenape Tribal Nation in 2021. We thank these leaders for their generosity.
The University of Delaware occupies lands vital to the web of life for Lenni Lenape and Nanticoke, who share their ancestry, history, and future in this region. UD has financially benefited from this regional occupation as well as from Indigenous territories that were expropriated through the United States land grant system. European colonizers and later the United States forced Nanticoke and Lenni Lenape westward and northward, where they formed nations in present-day Oklahoma, Wisconsin, and Ontario, Canada. Others never left their homelands or returned from exile when they could. We express our appreciation for ongoing Indigenous stewardship of the ecologies and traditions of this region. While the harms to Indigenous people and their homelands are beyond repair, we commit to building right relationships going forward by collaborating with tribal leadership on actionable institutional steps.
Time domain astrophysics at a glance
Rubin LSST
Leading the Rubin LSST army of volunteers
Rubin LSST projects at FASTLab
At the intersection of astrophysics and Public Policy: From Light Echoes to Pollution Plumes
Data skills for good: COVID response support in Delaware
https://www.youtube.com/watch?v=qc_iscV1uA0
Time domain astrophysics at a glance
Rubin LSST
Leading the Rubin LSST army of volunteers
FASTLab projects in data-driven astrophysics
At the intersection of astrophysics and Public Policy: From Light Echoes to Pollution Plumes
Data skills for good: COVID response support in Delaware
Time domain astrophysics at a glance
The immutable skies
Bartolomeu Velho, 1568 (Bibliothèque Nationale, Paris)
cepheid
circa 1900
cepheid
Will we discover new physics?
A survey of Machine Learning features and methods to discover unique objects and rare classes in regularly and irregularly sampled time series
2D t-SNE projection of feature space
Weirdness score
Evenly sampled Kepler time series
.
Sparse, unevenly sampled Kepler time series
Will we discover new physics?
A comparative assessment of LSST potential surveys in the discovery of unknown unknowns
Vera C. Rubin Observatory:
Ushering a New Era of TDA
LSST Science Drivers
Probing Dark Energy and Dark Matter
image credit ESO-Gaia
LSST Science Drivers
Mapping the Milky Way and Local Volume
via resolved stellar population
An unprecedented inventory of the Solar System from threatening NEO to the distant Oort Cloud
LSST Science Drivers
LSST Science Drivers
image credit: ESA-Justyn R. Maund
Exploring the Transients and Variable Universe
10M alerts every night shared with the world
60 seconds after observation
single image depth ~24
10-year stack image depth ~26
image resolution 0.2'' (seeing limited)
18,000 sq degrees
839 images over 10 years in 6 filters
2-3 images per night
each fields reobserved within ~days
5 fields observed to higher cadence and more images
survey specification
~25.9, 26.8, 26.8, 26.3, 25.6, 24.8
~56, 74, 184, 187, 166, 171
Rubin Observatory
Site: Cerro Pachon, Chile
Funding: US NSF + DOE
Status: final phases of construction - completion expected 2023
@fedhere
September 2016
@fedhere
Fabruary 2020
@fedhere
May 2022
@fedhere
May 2022
what's in a name?
Rubin Obs is the first ground-based US National Observatory named after a woman astrophysicist, Dr.
Vera Florence Cooper Rubin
pioneered studies of Dark Matter through rotational curves
VRO
federica bianco - fbianco@udel.edu
@fedhere
8m Telescope
9.6 deg.sq. field of view
maximizes survey entendue
Observatory
May 2022 - Telescope Mount Assembly
Status: ongoing demonstration of the Camera/Secondary Mirror (M2) removal procedures, and ComCam installation expected in August.
The DOE LSST Camera - 3.2 Gigapixel
3.2 Gigapixel camera
378 4K ultra-high-definition TV
The DOE LSST Camera - 3.2 Gigapixel
Camera and Cryostat integration completed at SLAC in May,
Shutter and filter auto-changer integrated into camera body
3024 science raft amplifier channels, only 3 are substandard.
Rubin ugrizy filters
Summer 2021
AuxTel:
latest run June 28-July 1 2022
|
AuxTel is being used for monthly on-sky commissioning runs 3 nights/lunar cycle:
|
LOVE: LSST Operations Visualization Environment
Data Products
federica bianco - fbianco@udel.edu
@fedhere
world public!
federica bianco - fbianco@udel.edu
world public
data right holders
Astronomy meets Data Science
federica bianco - fbianco@udel.edu
@fedhere
At this level of precision,everything is variable, everything is blended, everything is moving.
| u,g,r,i,z,y | |
|---|---|
| Photometric precision Photometric accuracy Astrometric precision Astrometric accuracy # visits |
5 mmag 10 mmag 10 mas 50 mas 56, 80, 184, 184, 160, 160 |
SDSS
LSST
http://faculty.washington.edu/ivezic/talks/NASAseminar.pdf
SDSS 2x4 arcmin sq griz
MYSUC (Gawiser 2014) 1 mag shallower than LSST coadds
federica bianco - fbianco@udel.edu
@fedhere
At this level of precision,everything is variable, everything is blended, everything is moving.
| u,g,r,i,z,y | |
|---|---|
| Photometric precision Photometric accuracy Astrometric precision Astrometric accuracy # visits |
5 mmag 10 mmag 10 mas 50 mas 56, 80, 184, 184, 160, 160 |
http://faculty.washington.edu/ivezic/talks/NASAseminar.pdf
Survey
design
Rubin LSST survey design
distributions of time gaps in 76 OpSims
Rubin LSST survey design
Rubin LSST survey design
Bianco et al. 2021
Because the Rubin LSST data is open to all US scientists and to a broader yet community worldwide, to truly make it a survey of and for and of the people, Rubin Observatory called the community to design its survey -
this is a uniquely "democratic" process!
single document
9 chapters
25 science cases
14
46 papers
467 unique authors
16
39 notes
218 unique authors
173
date
goal
target community
response
available simulation
2015-17
2018
2021
Rubin LSST survey design
2015-17
Rubin LSST SCOC
2015-17
Timo Anguita Universidad Andres Bello
Saurabh Jha Rutgers University
Rachel Mandelbaum CMU
Adam Miller Northwestern University
Steven Smartt Oxford University
Rachel Street Las Cubres Observatory
Kat Volk University of Arizona, PSI
Franz Baur Universitdad Cátolica, Chile
Knut Olsen NSF’s NOIRLab
Colin Slater University of Washington
Jay Strader Michigan State University
Its tasks are as follows:
- Based on input from the OpSim team and the Vera C. Rubin Observatory Legacy Survery of Space and Time (LSST) Science Collaborations, make specific recommendations for the cadence choices for the full 10-year survey.
- Help communicate these recommendations to the science community
- Based on the plans for commissioning, and the realized performance of the telescope and software, make specific recommendations for “Early Science” observations
- During operations, make recommendations for changes in survey strategy, including Target of Opportunity observations and the use of Director’s Discretionary Time.
Rubin LSST SCOC
23
23.7
24.7
24.3
25
26.9
28.1
5σ depth
5σ depth
coadd 5σ depth
coadd 5σ depth
survey specifications
(current baseline)
g band
r band
source http://astro-lsst-01.astro.washington.edu:8080/?runId=2
27.1
23.3
0.576
0.52
intranight gap
hours
15
internight gap
days
15
3
median internight gap
days
50
5
median internight gap
days
any filter
r band
survey specifications
source http://astro-lsst-01.astro.washington.edu:8080/?runId=2
0.576
intranight gap
hours
Parallax uncertainty @ 24 mag (mas)
Gaia DR2: 0.1 mas @ mag 17
https://www.cosmos.esa.int/documents/29201/1770596/Lindegren_GaiaDR2_Astrometry_extended.pdf
survey specifications
source http://astro-lsst-01.astro.washington.edu:8080/?runId=2
survey specifications
(current baseline)
26.8
29.05
28.6
26.8
26.9
28.1
coadd 5σ depth
survey specifications
(current baseline)
source http://astro-lsst-01.astro.washington.edu:8080/?runId=2
26.8
29.05
28.6
26.8
Rubin Observatory LSST
Rubin and MMA
Rubin Observatory LSST
federica bianco - fbianco@udel.edu
@fedhere
LIGO/VIRGO area of localization ~100deg square
Ursa Minor contains 255.86 square degrees
S190425z 18% of the sky localization
Rubin Observatory LSST
federica bianco - fbianco@udel.edu
@fedhere
Rubin can find the electromagnetic counterpart of Gravitational Wave and Neutrino discoveries better than any survey!
LIGO/VIRGO area of localization ~100deg square
Ursa Minor contains 255.86 square degrees
Rubin FoV 10 deg
S190425z 18% of the sky localization
Rubin Observatory LSST
federica bianco - fbianco@udel.edu
@fedhere
AT 2017gfo
optical counterpart we have identified near NGC 4993 is associated with GW170817
https://iopscience.iop.org/article/10.3847/2041-8213/aa9059 M. Soares-Santos+2017
(but also Abbott+2017, Drout+2017...... )
Evidence that mergers of NS are significant sources of r-process elements heavier than iron, including gold and platinum, which was previously attributed exclusively to supernova explosions
@fedhere
Rubin Observatory LSST
federica bianco - fbianco@udel.edu
@fedhere
Margutti+2018
Andreoni+ 2022
Rubin Observatory LSST
federica bianco - fbianco@udel.edu
@fedhere
Margutti+2018
Andreoni+ 2022
Rubin Observatory LSST
federica bianco - fbianco@udel.edu
@fedhere
Margutti+2018
Andreoni+ 2022
the Rubin LSST
Science Collaborations
The Rubin Organization is almost as complex as the Universe it will explore!
Rubin LSST Science Collaborations
8 SCs - 6 continents - 2000 people - 25 countries
Rubin LSST survey design
40+ submissions
85% led by SC members
and virtually all including SC members
The SCs were core to this process
Rubin Focus Issue of ApJS on Rubin Survey Strategy Optimization
A focus issue of ApJS to publish LSST cadence proposals work
federica bianco fbianco@udel.edu
thank you!
https://www.lsst.org/
https://www.lsst.org/scientists/science-collaborations
https://www.lsstcorporation.org/
We study rare and unusual transients with machine learning and probabilistic inference
Rubin LSST
Leading the Rubin LSST army of volunteers
FASTLab projects in data-driven astrophysics
At the intersection of astrophysics and Public Policy: From Light Echoes to Pollution Plumes
Data skills for good: COVID response support in Delaware
Time domain astrophysics at a glance
Research Inclusion: sonification of LSST lightcurves
Riley Clarke, UD grad student Sid Patel, UD undergrad summer research project
Sonification: Data → Sound
New way of understanding data
- Can be complementary to visualizations
Gives access to people who cannot
interpret data visuallySounds cool! Good for public outreach
Research Inclusion: sonification of LSST lightcurves
Rubin Rhapsodies
Research Inclusion: sonification of LSST lightcurves
Rubin Rhapsodies
Light Echoes
Light Echoes
η-Carinae light echoes
Rest et al. (w Bianco) 2012Natur.482..375R
Light Echoes
η-Carinae light echoes
Frew 2004, Smith & Frew 2011
Light Echoes
η-Carinae light echoes
Li et al. submitted
AILE: the first AI-based platform for the detection and study of Light Echoes
NSF Award #2108841
Detecting and studying light echoes in the era of Rubin and Artificial Intelligence
P.I. Bianco
Pessimal AI problem:
- small training data
- inaccurate labels
- imbalance classes
- diverse morphology
- low SNR
AILE: the first AI-based platform for the detection and study of Light Echoes
YOLO3 + "attention" mechanism
precision 80% at 70% recall with a training set of 19 light echo examples!
NSF Award #2108841
Detecting and studying light echoes in the era of Rubin and Artificial Intelligence
P.I. Bianco
Li et al. submitted
Multi-city Urban Observatory Network
Studying cities as complex systems through imaging data
Multi-city Urban Observatory Network
Studying cities as complex systems through imaging data
- energy demand and consumption
- ecology of flora and fauna
- urban metabolism
- circadiem rhythms
Multi-city Urban Observatory Network
From Light Echoes to Polluting Plumes
Ian Heffner, UD MSDS
improved image
subtraction through PCA
Pessimal AI problem:
- small training data
- inaccurate labels
- imbalance classes
- diverse morphology
- low SNR
- complex BG
From Light Echoes to Polluting Plumes
Ian Heffner, UD MSDS
improved image
subtraction through PCA
Pessimal AI problem:
- small training data
- inaccurate labels
- imbalance classes
- diverse morphology
- low SNR
- complex BG
Plumes and heat in NIR
Plumes in hyperspectral imaging
thank you!
University of Delaware
Department of Physics and Astronomy
Biden School of Public Policy and Administration
Data Science Institute
@fedhere
federica bianco
fbianco@udel.edu
thank you!
University of Delaware
Department of Physics and Astronomy
Biden School of Public Policy and Administration
Data Science Institute
@fedhere
federica bianco
fbianco@udel.edu
Rubin Observatory LSST
Diversity Equity Inclusion
Rubin LSST Science Collaborations
We aspire to be an inclusive, equitable, and ultimately just group and we are working with renewed vigor in the wake of the recent event that exposed inequity and racism in our society to turning this aspiration into action.
Rubin LSST Science Collaborations
what's in a name?
The first ground-based national US observatory named after a woman, Dr. Vera C. Rubin
VRO
In the first 10 years of its life Rubin will conduct the Legacy Survey of Space and Time or LSST
federica bianco - fbianco@udel.edu
@fedhere
Title Text University of Delaware Department of Physics and Astronomy federica bianco - Associate Professor (she/her) Biden School of Public Policy and Administration Data Science Institute
CIERA seminar
By federica bianco
CIERA seminar
NorthWestern Colloquium Rubin LSST 11/2022
- 709
