Globular Cluster

Open Cluster

• 100 000 to 1 000 000 stars
• Old stars (age of our Galaxy)

• 100 to 1 000 stars
• Young Stars

Globular Cluster

NGC 6397

Omega Cen

Imágenes: NASA/ ESA/ STScI

M70

47 tuc

NGC 6752

M22

M92

Mass ~ 1 M☉

Radius ~ 1 R🜨

Radius ~ 1 R🜨

Mass ~ 1 M☉

Radius ~ 1 R🜨

Mass ~ 1 M☉

Radius ~ 10 Km

White Dwarf

Neutron Star

Life Cycles of Stars

Life Cycles of Stars

Life Cycles of Stars

Interactions

Compact Binaries

R. Hynes

Compact Object and "Normal" star

Compact Binaries

R. Hynes

X-ray

Compact Object

Space Telescopes

Space Telescopes

Hubble Space Telescope

Chandra

Hubble Space Telescope

Hubble Space Telescope

Finding Compact Binaries in GCs

HST Optical (3' x 2')

NASA, T. Brown and S. Casertano (STScI)

HST NUV (2.7' x 2.7')

Dieball et. al (2016)

Chandra (3.65 ' x 3.65')

NASA/CXC

Look in the X-ray

Finding Compact Binaries in GCs

Color-Magnitude Diagram

Lugger et. al  (2017)

Cataclysmic Variables

Mark A. Garlick

White Dwarf

Solar-like Star

X-ray Binaries

Credits: NASA/Rivera Sandoval

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Neutron Star

Neutron Star

White Dwarf

White Dwarf

Neutron Star Binaries

Credit: Roen Kelly/Discover 

Main et al 2018 (Nature)

Redback 'spider' Pulsar

Redback  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

X-ray Binaries

Credits: NASA/Rivera Sandoval

Text

Neutron Star

Neutron Star

White Dwarf

White Dwarf

Finding Black Holes

Finding Black Holes

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

¡Gracias!

Thank you!

 !

Extra

A new candidate Redback Pulsar

Variable

Periodic

Lomb-Scargle periodogram

Pichardo Marcano et. al (2021a)