Science2021-12-02T15:45:55+00:00

SCIENCE

Some talks, presentations, articles and papers from the project

Refereed Publications

Froebrich D., Eislöffel J., Stecklum B., Herbert C., Hambsch F.-J., 2021, A survey for variable young stars with small telescopes: V – Analysis of TXOri, V505Ori, and V510Ori, the HST ULLYSES targets in the σ Ori cluster, MNRAS, in press (.pdf version)

Froebrich D., Derezea, E., Scholz A., et al., 2021, A survey for variable young stars with small telescopes: IV – Rotation Periods of YSOs in IC5070, MNRAS, 506, 5989 (.pdf version)

Froebrich, D., Scholz, A., Eislöffel, J., Stecklum, B., 2020, A survey for variable young stars with small telescopes: III – Warm spots on the active stars V1598Cyg, MNRAS, 497, 4602 (.pdf version)

Evitts, J.J.; Froebrich, D.; Scholz, A.; et al., 2020, A survey for variable young stars with small telescopes: II – Mapping a protoplanetary disk with stable structures at 0.15 AU, MNRAS, 493, 184 (.pdf version)

Hillenbrand, L.A., Contreras Pena, C., Morrell, S., et al., 2018, Gaia 17bpi: An FU Ori Type Outburst, ApJ, 869, 146 (.pdf version or Press Release)

Froebrich, D., Campbell-White, J., Scholz, A., et al., 2018, A survey for variable young stars with small telescopes: First results from HOYS-CAPS, MNRAS, 478, 5091 (.pdf version)

Sicilia-Aguilar, A., Oprandi, A., Froebrich, D., et al., 2017, The 2014-2017 outburst of the young star ASASSN-13db: A time-resolved picture of a very low-mass star between EXors and FUors, A&A, 2017, 607, 127 (.pdf version)

HOYS Publication Guidelines

All publications using any HOYS data should reference the project description paper (Froebrich et al. 2018, MNRAS, 478, 5091) and the data calibration paper (Evitts et al. 2020, MNRAS, 493, 184). If not all contributors of data are included in the author list, then the following should be added to the acknowledgements of every publication: “We would like to thank all contributors of observational data for their efforts towards the success of the HOYS project.”

We aim to disseminate the results of the science exploitation of the HOYS data with two kinds of publications. These are: i) larger, survey description type publications and ii) smaller, more specific publications.

We plan to write type i) publications about every one to two years. On these publications every participant who contributed data should be added as a co-author (if s/he wishes so), as well as everyone involved in the data analysis.

All other, type ii) publications using any HOYS data should include everyone as a co-author who made a significant contribution to the scientific analysis of the data and the preparation of the publication. Furthermore, any contributor who made a significant contribution to the dataset analysed in the publication should be added as co-author. In other words, anyone whose data cannot be removed without significantly degrading the quality of the analysis should be made a co-author.

Science Talks / Presentations / Articles

Hunting for Eruptive Young Stellar Objects, Article on the BAA website, advertising the expansions of the project to variable star observers in the UK.

Hunting for Eruptive Young Stellar Objects, Article in the BAA VSS Circular 174 (December 2017), advertising the expansions of the project to variable star observers in the UK.

Optical brightness and colours of V2492Cyg before, during and after the recent record peak in brightness, ATel10259, 12.04.2017

Froebrich, D., Scholz, A., Campbell-White, J., Crumpton, J., D’Arcy, E., Makin, S.V., Zegmott, T., Billington, S.J., Hibbert, R., Newport, R.J., Fisher, C.R. 2018, Variability in IC5070: two young stars with deep recurring eclipses, RNAAS, 2, 61 (.pdf version)

How to form stars and clusters and how to help us understand it, Stargazing Live Talk, 03.03.2017

The Physics of Star Formation, Public talk for Crayford Manor House Astronomical Society Dartford, 03.11.2016

Photometric Monitoring of nearby young Clusters as a Citizen Science Project, Poster at Star Formation 2016 Conference in Exeter, 24.08.2016

Photometric Monitoring of nearby young Clusters as a Citizen Science Project, Talk at Star Formation 2016 Conference in Exeter, 24.08.2016

The Physics of Star Formation, Talk at Hampshire Astronomical Group Meeting on 13.05.2016

The Physics of Star Formation, Talk at SEKAS Meeting on 09.01.2016

Hunting for Eruptive Young Stellar Objects, Article in the BAA VSS Circular 164 (June 2015), advertising the project to variable star observers in the UK.

Hunting for Eruptive Young Stellar Objects, Talk given at BAA Spring Meeting in Ashford on 25.04.2015, presenting some initial results of the search for high amplitute variables in NGC 2264.

LIGHT CURVES

Lightcurve of the week 194

29 September 2022|

This weeks featured image shows the size of our daily database backups. As you can see, since Monday, despite people adding data, the database has slightly decreased in size. So [...]

Lightcurve of the week 193

22 September 2022|

This week we look at a plot from a recently submitted HOYS paper. In the paper we determine the properties of star spots on young stellar objects in the Pelican [...]

Lightcurve of the week 192

16 September 2022|

Winter is coming. We have now uploaded and processed the data from August for many of the Orion Targets. Hence we get our first look at how the objects are [...]

Lightcurve of the week 191

8 September 2022|

Do people see or read our light curve of the week posts, and do they have any impact? Well, let see. In February our post number 166, looked at the [...]

Lightcurve of the week 190

1 September 2022|

This week we have a little bit of a look how 'international' our project is. Some of you might know, or even remember, that we originally started out with a [...]

Lightcurve of the week 189

26 August 2022|

This week we have a look at our basic photometry calibration and try to answer the question "Why does my calibration look weird?" - Which sometimes comes up when someone's [...]

Lightcurve of the week 188

19 August 2022|

This week we look at one of the plots from the first HOYS paper: "A survey for variable young stars with small telescopes: First results from HOYS-CAPS" - note we [...]

Lightcurve of the week 187

12 August 2022|

This week we have a look at the number of images we have for each target region. This is shown in the above plot. For each target, listed at the [...]

Lightcurve of the week 186

4 August 2022|

This week we look at the light curve of the young star BB Ori. It is situated in the L1641N target field, just south of the Orion Nebula (M42). The [...]

Lightcurve of the week 185

28 July 2022|

We are making good progress on the writing of the next few papers with HOYS data, so this week we have a look back at a plot from an earlier [...]

Lightcurve of the week 184

21 July 2022|

This week we are looking at the young star LkHa154 in the Pelican Nebula. It is classified as an emission line star. This means, if you take a spectrum you [...]

Lightcurve of the week 183

13 July 2022|

This week we look at the object V1319Cyg, which is situated in the field around the Berkley 86 open cluster. We show the light curve in V and I in [...]

Go to Top