A needle in a Haystack:
Finding Exotic Binaries in
Star Clusters
Manuel Pichardo Marcano
Star Clusters
Globular Cluster
Open Cluster
- 100 000 to 1 000 000 stars
- Old stars (age of our Galaxy)
- 100 to 1 000 stars
- Young Stars
Pleiades. Distance: 400 light years
3 A.M/ 03:00
August 1, 2024
A Open Cluster
From: https://stellarium-web.org/
A Globular Cluster
From: https://stellarium-web.org/
M4: Closest Globular Cluster:
7 thousand light-years
9 P.M/ 21:00
July 21, 2024
Globular Clusters
Globular Cluster
NGC 6397
Omega Cen
Imágenes: NASA/ ESA/ STScI
M4
47 tuc
NGC 6752
M22
M92
Normal Stars and Dead Stars
White Dwarfs
"Normal" Stars
White Dwarf
Sirius
White Dwarf
Sirius: The brightest star in the night sky
1 A.M/ 01:00
October 22, 2024
Sirius A y Sirius B
NASA, ESA, H. Bond (STScI), and M. Barstow (University of Leicester).
Sirius A
"Normal"
Star
Sirius B
White Dwarf
- A 8.6 light years
- Closest White Dwarf
Sirius A y Sirius B
- A 8.6 light years
- Closest White Dwarf
- Orbital Period of 50 years
White Dwarf
White Dwarfs
Mass of the Sun
Radius of the Earth
Types of Stars
Sun
20 to 100 times the Mass of the Sun
All low mass stars: M to A will become a White Dwarf
Types of Stars
Life Cicle of Stars
White Dwarfs
Compact Objects
Neutron Star
White Dwarf
Mass of the Sun
Size of a City!
Mass of the Sun
Size of the Earth
Binaries Everywhere!
Credit: Aaron Geller
Compact Binaries
R. Hynes
Compact Object and "Normal" star
Factories of X-ray Binaries
Credits: NASA/Rivera Sandoval
Text
Neutron Star
Neutron Star
White Dwarf
White Dwarf
Space Telescopes
Hubble Space Telescope
Chandra
Finding Compact Binaries in GCs
Hubble in the Optical
Chandra in the X-ray
Look in the X-ray
Finding Black Holes
Finding Black Holes
Finding Black Holes
The Finger Print of the Stars
Finding Black Holes
Finding Black Holes
Globular Cluster
NGC 6397
Omega Cen
Imágenes: NASA/ ESA/ STScI
M70
47 tuc
NGC 6752
M22
M92
Exotic Binaries Factories
Globular Cluster
NGC 6397
Omega Cen
Imágenes: NASA/ ESA/ STScI
M70
47 tuc
NGC 6752
M22
M92
Exotic Binaries Factories
Compact Binaries
R. Hynes
X-ray
Compact Object
Finding Compact Binaries in GCs
H-R Diagram
Cohn et. al (2011)
Hα Excess
White Dwarf + "Normal" Star
Hα deficiency
Brighter
Bluer <---> Redder
Mark A. Garlick
White Dwarf Sequence
Main Sequence
White Dwarf
Solar-like Star
X-ray (Chandra)
Hubble Data
Globular Cluster
NGC 6397
Omega Cen
Imágenes: NASA/ ESA/ STScI
M70
47 tuc
NGC 6752
M22
M92
Exotic Binaries Factories
¡Gracias!
Thank you!
!
Black Hole Candidate
47 Tuc
Optical (Hubble)
Radio ATCA
Redback Pulsar
Hubble Space Telescope
Space Telescopes
Hubble Space Telescope
Life Cycles of Stars
Life Cycles of Stars
Title Text
Subtitle
Neutron Star Binaries
Credit: Roen Kelly/Discover
Main et al 2018 (Nature)
Redback 'spider' Pulsar
A new candidate Redback Pulsar
HUGS catalogue. (Piotto et al. 2015, Nardiello et al. 2018)
Pichardo Marcano et. al (2021a)
X-ray
HST F336W
Radio
Zhao et al.(2020)
X-ray Binaries
Credits: NASA/Rivera Sandoval
Text
Neutron Star
Neutron Star
White Dwarf
White Dwarf
Extra
Globular Cluster
Globular Cluster
A new candidate Redback Pulsar
Variable
Periodic
Lomb-Scargle periodogram
Pichardo Marcano et. al (2021a)
Nepal
By mmarcano22
