Filters¶

class qmostetc.Filter¶

Spectral filter handling

This class only has static functions to read and list the available filters

static read(fname)¶

Read a spectral filter

There are a number of filters available from the ICR which can be retrieved directly by the name. The name prefixes may be omitted as long as the name remains unique.

The list of filters includes:

GAIA2r.Gbp, GAIA2r.G, GAIA2r.Grp

CTIO DECam.g, DECam.i, DECam.r, DECam.u, DECam.z

Generic Bessell.U, Cousins.I, Cousins.R, Johnson.B, Johnson.V

Paranal VISTA.H, VISTA.J, VISTA.Ks, VISTA.Y, VISTA.Z

The complete list of filters can be retrieved with the list() function.

User defined filters can be used by providing a file name instead. Note that SDSS filters are not in the list of standard filters and need to be provided as file name.

static list()¶

List all available filters

This function lists all filters that are available from ICR. These names can be used to specify a filter in the SEDTemplate.__call__() function.

Returns:

list: List of filter names

Examples

>>> from qmostetc import Filter
>>> Filter.list()
['CTIO_DECam.g', ...]

List of filters included in the ETC¶

Zeropoints¶

[1×10⁻¹⁵ J nm⁻¹ s⁻¹ cm⁻²]¶
Filter	mag(AB)	mag(Vega)
CTIO_DECam.g	4.70761	5.14323
CTIO_DECam.i	1.7829	1.22468
CTIO_DECam.r	2.64023	2.23242
CTIO_DECam.u	7.48145	5.51328
CTIO_DECam.z	1.29464	0.803271
GAIA_GAIA2r.G	2.7894	2.49479
GAIA_GAIA2r.Gbp	4.27046	4.03517
GAIA_GAIA2r.Grp	1.81652	1.2936
Generic_Cousins.I	1.75454	1.19373
Generic_Cousins.R	2.61566	2.20693
Generic_Johnson.B	5.57956	6.21931
Generic_Johnson.V	3.56651	3.52805
LSST_LSST.g	4.75942	5.21669
LSST_LSST.i	1.91853	1.37352
LSST_LSST.r	2.81543	2.45994
LSST_LSST.u	8.03739	4.45072
LSST_LSST.y	1.14972	0.694981
LSST_LSST.z	1.44303	0.904359
Paranal_VISTA.H	0.402679	0.11504
Paranal_VISTA.J	0.693258	0.298047
Paranal_VISTA.Ks	0.236182	0.0441262
Paranal_VISTA.Y	1.04479	0.601731
Paranal_VISTA.Z	1.41335	0.882184