For an object to be included in this database it must have a published, refereed, article that shows:
on which the outer disk radius can be measured.
Commonly used name for the object. Click on the name to bring up detailed page on the object. Clicking on the 'Object' column header will allow you to reorder the table in alphabetical or reverse alphabetical order.
The information page on each object provides a table with the basic information for the star (coordinates, spectral type, distance) and the disk (position angle, disk inclination and reference for this information, when available). A list of published, refereed, references is also provided for each star. This list is not complete; references that provide information on the resolved disk or the unresolved disk at wavelengths longer than 1 micron are provided, along with theoretical/modelling papers that are specific to the object in question.
If known, the spectral type of the central star is provided. Clicking on the SpTy column header will resort the table in alphabetical or reverse alphabetical order.
The stars are classified in the category column based on mass and age.
Clicking on the Category column header will resort the table in alphabetical or reverse alphabetical order, thus showing all objects in the same category together.
The distance, in parsec, either to the star or star forming region the star is in, is provided. Clicking on the Distance column header will resort the table in either increasing or decreasing distance.
For a specific wavelength (listed in the last column of the table) the diameter of the resolved emission is provided, in both arcsec and AU (if the distance is known).The extent of disk emission can vary significantly depending on whether you are observing scattered light or mm line emission; we provide the largest measurement available for each disk, the reference to which is highlighted with an asterisk on the object details page. Clicking on the Disk diameter column header will resort the table in either increasing or decreasing disk size.
The inclination angle of the disk is provided
when it has been calculated in the literature; in some cases this
value is model dependent. We define inclination to be the angle
between the line of sight and the normal to the disk plane, i.e.,
face-on disks have i = 0, whereas edge-on disks have i = 90 degrees.
Where necessary, measurements in the literature have been converted to
How well resolved
This measurement provides a
rough quantification of how well resolved each disk is. Taking the
disk diameter at the reference wavelength listed (last column in
table), the number of diffraction beams that can fit in the disk
diameter is calculated. Clicking on the column header will resort the
table in either increasing or decreasing inclination angle.
At ref. wavelength
Lists the wavelength at which the disk diameter and 'how well resolved' columns are calculated. The publication which provided the disk size is highlighted by an asterisk on the object details page.
How often is this catalog updated?
Newly resolved disks will be added as we become aware of them. You can help by pro-actively sending your object and journal citation to us. References for each object will be updated at least quarterly.