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Update taxonomy in field_guide docs (#532)
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* Update taxonomy in field_guide docs

* Uncomment temporary melman fix

* Comment melman config to fix tests

* Remove commented lines
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@bfhealy
bfhealy authored Feb 1, 2024
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274 changes: 176 additions & 98 deletions config.defaults.yaml
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Expand Up @@ -98,79 +98,167 @@ taxonomy:
Any ZTF source that shows detectable variability in its light curve
due to an astrophysical origin. This excludes variability due to blended photometry,
bright nearby stars, or any CCD artifact.
- class: pnp
name: periodic
description: |
The ZTF light curve features astrophysical periodic variability.
These are typically pulsators, rotating stars and (eclipsing) binaries.
This does not include semi-periodic or quasi-periodic variability. This
excludes variability due to a varying background (e.g. due to the moon),
or spurious periodic variability due to nearby bright stars or other artifacts.
- class: longt
name: long timescale
description: |
Any object which shows variability on timescales of ~100+ days. This can be a steady
increase/decrease in luminosity, e.g., AGN and CVs.
Long timescale period variable like Miras and the more
irregular semi-regular variables are generally included in this category.
- class: i
name: irregular
description: |
Objects which show irregular/stochastic variability.
These are mostly accreting objects, AGN, CVs, and YSOs.
- class: e
name: eclipsing
description: |
Any source that shows eclipses in the light curve.
These are predominately eclipsing binaries.
Eclipsing planetisimals or planets with large rings would also
fall in this category.
subclasses:
- class: ea
name: detached binary
- class: eb
name: semi-detached binary
- class: ew
name: overcontact binary
- class: fla
name: flaring
description: |
Any ZTF light curve that shows flares, rapidly rising and fading events.
These are mostly cataclysmic variables, some young stellar objects, M-dwarfs, and some AGN.
- class: bogus
name: bogus
description: |
Any light curve that seems variable, but is not due to any astrophysical variability.
These are galaxies that can seem to vary due to PSF variations,
image artifacts like ghosts, blended stars, or diffraction spikes.
- class: pnp
name: periodic
description: |
The ZTF light curve features astrophysical periodic variability.
These are typically pulsators, rotating stars and (eclipsing) binaries.
This does not include semi-periodic or quasi-periodic variability. This
excludes variability due to a varying background (e.g. due to the moon),
or spurious periodic variability due to nearby bright stars or other artifacts.
subclasses:
- class: sin
name: sinusoidal
subclasses:
- class: el
name: ellipsoidal
- class: saw
name: sawtooth
- class: mp
name: multi periodic
- class: longt
name: long timescale
description: |
Any object which shows variability on timescales of ~100+ days. This can be a steady
increase/decrease in luminosity, e.g., AGN and CVs.
Long timescale period variable like Miras and the more
irregular semi-regular variables are generally included in this category.
- class: e
name: eclipsing
description: |
Any source that shows eclipses in the light curve.
These are predominately eclipsing binaries.
Eclipsing planetisimals or planets with large rings would also
fall in this category.
subclasses:
- class: ea
name: detached binary
- class: eb
name: semi-detached binary
- class: ew
name: overcontact binary
- class: wp
name: wrong period
subclasses:
- class: hp
name: half period
- class: dp
name: double period
- class: i
name: irregular
description: |
Objects which show irregular/stochastic variability.
These are mostly accreting objects, AGN, CVs, and YSOs.
subclasses:
- class: fla
name: flaring
description: |
Any ZTF light curve that shows flares, rapidly rising and fading events.
These are mostly cataclysmic variables, some young stellar objects, M-dwarfs, and some AGN.
- class: dip
name: dipping
- class: nonvar
name: non-variable
subclasses:
- class: bogus
name: bogus
description: |
Any light curve that seems variable, but is not due to any astrophysical variability.
These are galaxies that can seem to vary due to PSF variations,
image artifacts like ghosts, blended stars, or diffraction spikes.
subclasses:
- class: ext
name: extended
- class: blend
name: blend
- class: bright
name: bright star
- class: artfct
name: ccd artifact
- class: ontological
name: ontological
description: |
What can be said about an object given *not only* ZTF data
subclasses:
- class: puls
name: pulsator
- class: accr
name: Accretor
description: |
Any kind of pulsating star.
Any kind of accreting system.
subclasses:
- class: dscu
name: Delta Scuti
- class: agn
name: AGN
description: |
Delta Scuti are pulsating A&F main sequence stars. The pulsation period ranges between
0.03 between 0.3 days, and the amplitude is typically 0.2 mag but can reach up to 0.8mag.
Their light curves are asymmetric, with a rapid rise and slow decay.
- class: ceph
name: Cepheid
Extra-galactic objects which tend to vary irregularly. Often show slowly rising
or fading light curves, and can also show outbursts in rare cases.
- class: cv
name: CV
description: |
Cepheids are radially pulsating giant stars in the instability strip.
Period range between 1 and 50 days, with extreme examples of 200 days.
Light curves shapes range from asymmetric with a steep rise
and slow decay, to almost sinusoidal light curve shapes.
A binary star that consists of two components:
a white dwarf primary, and a mass transferring secondary.
- class: yso
name: YSO
description: |
Pre-main-sequence stars. They typically have an accretion disk and dust around
them. This results in a light curve which shows irregular behavior,
sometimes with outbursts or dust obscuration events.
- class: bis
name: Non-accreting binary
description: |
Any object that is a non-accreting binary system.
subclasses:
- class: blyr
name: Beta Lyrae
description: |
Binary systems where one of the components has evolved into a subgiant or giant star and
is filling its Roche lobe transferring mass in a disk.
The light curve of these systems is of type EB. The period
ranges between 0.3 days and 200 days.
Systems with a period of >100 days contains a supergiant.
- class: rscvn
name: RS CVn
description: |
A binary star where at least one of the components
has large stellar spots. The light curve shape is sinusoidal
with periods of a few hours to 14 days.
The shape of the light curve changes over timescales of months to years.
- class: wuma
name: W Ursae Maj
description: |
Eclipsing close binary stars of spectral types F, G, or K that share a common envelope
of material and are thus in contact with one another.
- class: hwvir
name: HW Vir
- class: emsms
name: detached MS-MS
description: |
Detached eclipsing MS-MS binary.
- class: peccb
name: Peculiar compact binary
subclasses:
- class: nnser
name: NN Ser
- class: puls
name: Pulsator
description: |
Any kind of pulsating star.
subclasses:
- class: rrlyr
name: RR Lyrae
description: |
RR Lyrae are radial pulsators on the horizontal branch; they are helium core burning and
hydrogen shell burning. The pulsation period ranges between 0.2 and 1.0 days.
subclasses:
- class: rrab
name: RRab
- class: rrc
name: RRc
- class: rrd
name: RRd
- class: rre
name: RRe
- class: rrblz
name: Blazhko
- class: lpv
name: long period variable
description: |
Expand All @@ -183,50 +271,40 @@ taxonomy:
AGB stars which show very high amplitude (> 2.5), long period (80-1000
days) variability.
- class: srv
name: semi-regulat variable
name: Semiregular
description: |
Show more irregular, and lower amplitude variability than Miras.
- class: bis
name: binary star
description: |
Any object that is a binary star.
subclasses:
- class: wuma
name: W UMa
description: |
Eclipsing close binary stars of spectral types F, G, or K that share a common envelope
of material and are thus in contact with one another.
- class: blyr
name: Beta Lyr
- class: osarg
name: OSARG
description: |
OGLE small-amplitude red giant.
- class: rvtau
name: RV Tau
- class: dscu
name: Delta Scuti
description: |
Binary systems where one of the components has evolved into a subgiant or giant star and
is filling its Roche lobe transferring mass in a disk.
The light curve of these systems is of type EB. The period
ranges between 0.3 days and 200 days.
Systems with a period of >100 days contains a supergiant.
- class: rscvn
name: RS CVn
Delta Scuti are pulsating A&F main sequence stars. The pulsation period ranges between
0.03 between 0.3 days, and the amplitude is typically 0.2 mag but can reach up to 0.8mag.
Their light curves are asymmetric, with a rapid rise and slow decay.
- class: ceph2
name: Population II Cepheid
subclasses:
- class: blher
name: BL Her
- class: wvir
name: W Vir
- class: ceph
name: Cepheid
description: |
A binary star where at least one of the components
has large stellar spots. The light curve shape is sinusoidal
with periods of a few hours to 14 days.
The shape of the light curve changes over timescales of months to years.
- class: agn
name: active galactic nuclei
description: |
Extra-galactic objects which tend to vary irregularly. Often show slowly rising
or fading light curves, and can also show outbursts in rare cases.
- class: yso
name: young stellar object
description: |
Pre-main-sequence stars. They typically have an accretion disk and dust around
them. This results in a light curve which shows irregular behavior,
sometimes with outbursts or dust obscuration events.
- class: cv
name: cataclysmic variable
description: |
A binary star that consists of two components:
a white dwarf primary, and a mass transferring secondary.
Cepheids are radially pulsating giant stars in the instability strip.
Period range between 1 and 50 days, with extreme examples of 200 days.
Light curves shapes range from asymmetric with a steep rise
and slow decay, to almost sinusoidal light curve shapes.
subclasses:
- class: f
name: Fundamental
- class: o
name: Overtone

docs:
field_guide:
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